Answer:
see below
Explanation:
If fertilisation does not occur then the ovum disintegrates and endometrial lining of the uterus breaks down . It comes out of the vagina in form of menses . If fertilisation does not occur corpus luteum disintegrates. Due to this the progesterone secretion stops which is necessary for the maintaining the endometrial lining. This phase is called Menstrual phase , it usually last for 3-5 days .the aerobic stages of cellular respiration take place in the
The aerobic stages of cellular respiration take place in the Mitochondria.
While the majority of anaerobic (without oxygen) and aerobic (with oxygen) respiration respectively occurs in the cytoplasm and mitochondria of the cell, respectively. Aerobic respiration takes place inside the mitochondria. Except for red blood cells, it is a tissue organelle present in all cells.
Anaerobic metabolism, the Kreb cycle, and the chain of electron transport are the steps of respiration that take place. The mitochondria's matrix is where the ETC and Kreb cycles take place.
Aerobic mitochondria provide eukaryotes with energy by oxidatively phosphorylating amino acids to produce ATP (OXPHOS). OXPHOS enzymes are multisubunit complexes that are encoded by both mitochondrial and nuclear DNA.
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The aerobic stages of cellular respiration take place in the Mitochondria. While the majority of anaerobic (without oxygen) and aerobic (with oxygen) respiration respectively occurs in the cytoplasm.
and mitochondria of the cell, respectively. Aerobic respiration takes place inside the mitochondria. Except for red blood cells, it is a tissue organelle present in all cells. Anaerobic metabolism, the Kreb cycle, and the chain of electron transport are the steps of respiration that take place. The mitochondria's matrix is where the ETC and Kreb cycles take place. Aerobic mitochondria provide eukaryotes with energy by oxidatively phosphorylating amino acids to produce ATP (OXPHOS). OXPHOS enzymes are multisubunit complexes that are encoded by both mitochondrial and nuclear DNA.
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what statement best summarizes the results? what statement best summarizes the results? this data does not help us understand effects of gene flow on fitness. the gene flow between hatchery-reared and wild populations is neither helping nor hindering the fitness of the wild population. the gene flow between hatchery-reared and wild populations is leading to a decline in fitness of wild populations. the gene flow between hatchery-reared and wild populations is increasing the fitness of the wild populations.
The statement that best summarizes the results is "The gene flow between hatchery-reared and wild populations is neither helping nor hindering the fitness of the wild population."
This statement suggests that the data does not show a significant positive or negative impact of gene flow on the fitness of the wild population. It may also suggest that more research is needed to fully understand the effects of gene flow on the fitness of wild populations.
Gene flow refers to the movement of genes from one population to another, and can occur through various mechanisms such as migration, hybridization, or the dispersal of genetic material through seed or pollen.
When wild populations interbreed with hatchery-reared individuals, the genetic makeup of the wild population may change as a result of the influx of new genes from the hatchery-reared individuals. This can potentially have both positive and negative effects on the fitness of the wild population.
Positive effects may include the introduction of beneficial alleles (versions of a gene) that increase the population's overall fitness, such as disease resistance or improved reproductive success. On the other hand, negative effects may include the introduction of deleterious alleles that decrease the population's overall fitness, such as reduced survival or lower fertility.
The statement "The gene flow between hatchery-reared and wild populations is neither helping nor hindering the fitness of the wild population" suggests that the data collected does not indicate a significant positive or negative impact of gene flow on the fitness of the wild population. This could be due to a variety of reasons such as the small sample size, lack of data on specific genetic markers, or the complexity of measuring fitness.
It is important to note that this statement does not rule out the
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According to Chargaff's rule, base pairing in DNA should resemble which of the following?
A. A = T; C = G
B. A = C; T = G
C. A = G; T = U
D. A = U; C = G
Answer: A
Explanation:
A is paired with T, C is paired with G.
Which of these neurons carry impulses from the CNS to the effectors?A Sensory neuronsB Association neuronsC Connection neuronsD Motor neurons
The neurons that carry impulses from the CNS to the effectors are D. Motor neurons.
Motor neurons are a type of efferent neuron that transmit signals from the central nervous system (CNS) to the muscles, glands, and other effectors in the body. They play a crucial role in controlling voluntary and involuntary movements, as well as regulating the activity of various organ systems. Motor neurons are activated by the output of interneurons or other motor neurons, and their axons extend out of the CNS to synapse with the effector cells (muscles or glands).
Sensory neurons, on the other hand, are a type of afferent neuron that carry signals from sensory receptors to the CNS. They play a key role in detecting changes in the environment and transmitting sensory information to the brain and spinal cord.
Association neurons, also known as interneurons, are found only in the CNS and are responsible for relaying and processing information between sensory neurons and motor neurons.
Connection neurons is not a common term in neuroscience, it can refer to the same as Association neurons.
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During the Cretaceous period of Earth’s geological history, eastern Montana was covered with lowland swamps rich in plant life. These plants were buried and slowly decomposed. What did these plants eventually form?
These Plants eventually produce fossil fuels like coal.
The Cretaceous is the final part of the Mesozoic Era, lasting from 145.5 million years ago to 65.5 million years ago, and is characterized by the demise of the dinosaurs (except birds). The supercontinent Pangea was already rifting apart at the start of the Cretaceous, and by the middle of the period, it had fragmented into several smaller continents. As a result, the two new land masses experienced a significant geographic isolation that led to a divergence in the development of all land-based species. Along with the huge new beaches, the rifting apart also increased the amount of near-shore habitat that was accessible. In addition, as the world's climate cooled, the seasons became more distinct. By the end of the Cretaceous period, oaks, hickories, and magnolias had become widespread in North America, and forests had evolved to resemble modern forests.
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The plants buried during the Cretaceous period and slowly decomposed get transformed into fossil fuels like coal.
The Cretaceous period in early geologic time was known to exist for about 66 million years and is one of the three periods of the mesozoic era.
With the evolution of time and history the mostly expected form to come out from the buried plant remains of eastern Montana is of the fossils and mainly coal.
Due to the presence of the swampy area in the region of eastern Montana peat is the form of coal to be mined out from this region of search.
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Do all mammals have the same genes that give similar characteristics?
All mammals have the same genes that give similar characteristics. Different forms of these genes called alleles are responsible for changes. Thus, the given statement is true.
What are Genes?Gene is the basic unit of heredity which is passed on from parent generation to their children. Genes are made up of sequences of DNA and these are arranged, one after the another, at specific locations on the chromosomes in the nucleus of cells.
Different members of the same species show the presence of same genes which give them similar characteristics. However, these are not guaranteed to look the same. The organisms are not guaranteed to have the same organs and are also not guaranteed to be able to interbreed with each other.
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what are second messengers? what are second messengers? voltage-gated ion channels peptide neurotransmitters molecules that activate additional enzymes in the cytosol special proteins that span a 3-nm gap between two cell membranes
The correct option is A; Molecules that activate additional enzymes in the cytosol,
The cytosolic portion of the liver comprises soluble phase I enzymes such as esterases, amidases, and epoxyde hydrolases, as well as soluble phase II enzymes such as the majority of sulfotransferases (ST), glutathione s-transferases (GST), and N-acetyltransferases (NAT) (NAT).
These enzymes are known as hydrolytic enzymes, and they are responsible for breaking down big molecules into little ones. For example, big proteins can be broken down into amino acids, huge carbs can be broken down into simple sugars, and large lipids can be broken down into single fatty acids.
At integrin adhesion sites, the cytoplasmic proteins integrin-linked kinase (ILK), pinch, and parvin form the complex (IPP). They play critical roles in integrin-mediated signaling [62,63].
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Full Question ;
What are second messengers? Choose the correct option. A) Molecules that activate additional enzymes in the cytosol B) Voltage-gated ion channels C) Peptide neurotransmitters D) Special proteins that span a 3-nm gap between two cell membranes
Second messengers are: (3) molecules that activate additional enzymes in the cytosol.
Second messengers are the signaling molecules that are intracellular in nature. They get activated when an extracellular signaling ligand receptor interaction relays the signal for activation. These second messengers relay signals for the further activation of molecules. Th examples are: cAMP, cGMP, IP3, etc.
Enzymes are the biological catalyst that function to increase the rate of any chemical reaction. The enzymes are usually proteinaceous in nature. They work by lowering down the activation energy of a chemical reaction. The example of enzymes are: peptidase, lipase, catalase, invertase, etc.
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as the enzyme trypsin cuts peptide chains mainly at the carboxyl side of the amino acids lysine or arginine are these side chains consistent with their role in specificity?
The aromatic amino acids include phenylalanine (which has a phenyl group) and tyrosine, according to the list of amino acids (with a phenolic group).
Chymotrypsin's pocket has a preference for aromatic amino acids or amino acids with large hydrophobic chain .There are no amino acids among the remainder with large hydrophobic side chains. Although it possesses a 3-carbon side chain, the guanidino group in arginine makes it hydrophilic rather than a bulky hydrophobic R-group. Although alanine is hydrophobic, it is not bulky since its R-group solely consists of the methyl (-CH3) group. Neither hydrophobic nor aromatic, aspartate is neither. Finally, glycine is really straightforward; it just possesses a -H R-group. Proteases that behave like trypsin and break peptide bonds after positively charged amino acids (Lysine or Argenine)
Protease that is similar to elastase and has a significantly smaller S1 cleft than proteases that are similar to trypsin or chymotrypsin.
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which is an example of commensalism? cattle egret eat insects that are disturbed when the cattle forage
C: Cattle egret eat insects that are disturbed when the cattle forage" is an example of commensalism.
Commensalism indicates a relationship between two species of organisms, including animals, plants,and fungus, in which one species attains benefits or foods, known as commensal, while the other is unaffected or unharmed, is called host specifies.
So in the example given, cattle egret eat insects, which are disturbed when the cattle forage defines commensalism. The relationship does not have any affect on the cattle, while the cattle egret is depending on this food source.
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Complete question
Which is an example of commensalism? (a) oxpeckers (a type of bird) that live on a rhino and eat parasites off the rhino's back (b) cuckoos, which lay their eggs in the nest of another bird species that then raises the cuckoo's young (c) cattle egret eat insects that are disturbed when the cattle forage (d) protozoa living inside termites, helping termites to digest wood
"
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A Closer Look at Independent Assortment During melosis, the pairs of homologous chromosome are divided in half to form haploid cells, and this separation, or assortment of homologous chromosomes is random. To These chromosomes could have arranged in a different way. Drag the chromosomes to the cells in the alternative arrangement. Each cell MUST receive one long chromosome and one short
Homologous chromosomes are randomly distributed to daughter cells during cell division during meiosis, and different chromosomes segregate apart from one another. The term for this is independent assortment.
It produces gametes with distinctive chromosomal arrangements. Genes or alleles that sort into newly produced gametes independently of one another are referred to as independent assortment. The autonomous division of chromosomes into distinct gametes and cells leads to this independent assortment. Be aware that during crossing over, the order of the genes on each chromosome is altered. Genetic variety is influenced by meiosis, which involves autonomous assembly of homologous chromosomes and chromosomal crossover. A kind of cell division called meiosis results in fewer chromosomes in the parent cell.
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Homologous chromosomes are randomly distributed to daughter cells during cell division during meiosis, and different chromosomes segregate apart from one another. The term for this is independent assortment.
It produces gametes with distinctive chromosomal arrangements. Genes or alleles that sort into newly produced gametes independently of one another are referred to as independent assortment. The autonomous division of chromosomes into distinct gametes and cells leads to this independent assortment. Be aware that during crossing over, the order of the genes on each chromosome is altered. Genetic variety is influenced by meiosis, which involves autonomous assembly of homologous chromosomes and chromosomal crossover. A kind of cell division called meiosis results in fewer chromosomes in the parent cell.
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what is the process of making rna from a dna template?
The process of making RNA from a DNA template is called transcription.
The process of creating RNA from DNA is known as transcription, and it takes place in the nucleus. Transcription is the process of copying (transcription) DNA to mRNA, which carries the information needed for protein synthesis. Transcription is divided into two stages. First, pre-messenger RNA is synthesised with the help of RNA polymerase enzymes.
Transcription RNA is created from DNA by an enzyme called RNA polymerase during the transcription process. Rather than being identical copies of the template, the new RNA sequences are complementary to it. Ribosomes are structures that translate RNA into proteins.
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The process of making RNA from a DNA template is called transcription.
During transcription, the enzyme RNA polymerase binds to the DNA at the promoter region and separates the two strands of the DNA. It then works along the template strand, adding complementary ribonucleotides (A, U, G, and C) to form a single-stranded RNA molecule.
The RNA polymerase continues to add nucleotides until it reaches a termination signal, at which point it releases the newly synthesized RNA molecule.
The RNA molecule is then processed, which typically involves the removal of certain sections and the addition of a poly-A tail to the 3' end of the molecule. The resulting molecule is the mature RNA, which is ready to be translated into a protein.
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which plant hormone is known as the stress hormone?
Answer:
Abscisic acid is the plant hormone which s known as the stress hormone.
Rosalind Franklin is famous for which contribution to the study of DNA?
A. creation of an accurate model of DNA structure
B. creation of an X-ray diffraction image of DNA structure
C. identification of a pattern in ratios of DNA bases
D. identification of DNA in bandages that contained pus
which is true for the possible types of comparisons using sequences of small subunit rrna molecules?
It is true that sequences of small subunit ribosomal RNA (SSU rRNA) molecules can be used for various types of comparisons, such as phylogenetic analysis, identification of microbial species, and detection of genetic variation within populations.
Sequences of small subunit ribosomal RNA (SSU rRNA) molecules can be used for a variety of purposes in molecular biology and microbiology. One of the most common uses is phylogenetic analysis, which involves comparing the SSU rRNA sequences of different organisms to infer evolutionary relationships among them. This can be used to classify organisms into different taxonomic groups, such as species, genera, or families. Additionally, SSU rRNA sequences can be used for identification of microbial species, by comparing the sequences to known reference sequences. They can also be used for detection of genetic variation within populations, such as for studying the evolution of antibiotic resistance in bacteria. Furthermore, SSU rRNA sequences can be used in combination with other molecular markers, such as whole-genome sequencing, to enhance the resolution and accuracy of the comparisons.
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What type of cells are produced by the process shown below
Answer:
Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
1. How will photosynthesis affect oxygen levels?
Answer:
Raises O₂ levels
Explanation:
Photosynthesis is a chemical reaction that occurs within plants in the chloroplasts, using CO₂ and water to produce O₂ and glucose:
6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂
Explain how a strong focus on stewardship produces long-term benefits while still meeting short-term goals.
Investment stewardship refers to the prudent management of capital that we distribute on behalf of our clients in order to produce long-lasting benefits for the economy, environment, and society.
Why is stewardship important investing?Investment stewardship refers to the prudent management of capital that we distribute on behalf of our clients in order to produce long-lasting benefits for the economy, environment, and society.In order to address market-wide and company-specific risks and opportunities, we must interact with the businesses in which we invest.In order to address systemic problems, the team collaborates with regulators, decision-makers, and other professionals in our sector.In order to keep corporations accountable for the matters that matter most to our customers, our Investment Stewardship team exercises voting rights globally across LGIM's active and index funds. They include board diversity and independence, as well as climate change.To Learn more About Investment stewardship refer To:
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The term "investment stewardship" refers to the careful management of capital that we distribute on behalf of our clients in order to generate long-term benefits for the economy, environment, and society.
Why does stewardship matter while making investments?The term "investment stewardship" refers to the careful management of capital that we distribute on behalf of our clients in order to generate long-term benefits for the economy, environment, and society.We must engage the companies in which we invest in order to address both general market risks and opportunities and company-specific risks and possibilities.The team works with decision-makers, regulators, and other experts in our industry to address systemic issues.Our Investment Stewardship team uses its global voting rights across a range of issues to hold firms accountable for the issues that matter most to our consumers.The term "investment stewardship" refers to the careful management of capital that we distribute on behalf of our clients in order to generate long-term benefits for the economy, environment, and society.To learn more about Investment stewardship refer to:
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what are the largest known structures in the universe?
The largest structures in the cosmos that are known to exist, are made up of numerous galaxy clusters, groupings, and individual galaxies. The Hercules-Corona Borealis Great Wall supercluster of galaxies is the largest object that researchers have found in the universe. It was discovered in 2013.
The light must travel across the entire structure for almost 10 billion years because of how wide it is. The universe is only 13.8 billion years old. This enormous cluster of galaxies is known as a "galactic filament," and it is thought to be around 10 billion light-years across. Moreover, scientists believe gamma-ray bursts (GRBs) to be the most potent phenomena in the universe. In fact, this object is so large that it causes some astronomers some trouble.
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The Hercules-Corona Borealis Great Wall is a supercluster of galaxies that scientists have identified as the universe's largest single object.
The Hercules-Corona Borealis Great Wall is, as far as we are aware, the absolute largest thing in the universe. This is a galactic filament, which is a massive group of galaxies bound together by gravity and located approximately 10 billion light years away. Because it is so wide, it takes about 10 billion years for light to travel through the entire structure. The universe is only 13.8 billion years old, to put things in perspective.
The R Coronae Borealis (RCB) stars are known for producing a lot of dust, which causes them to lose brightness in a noticeable way.
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a large category of classification. animal, plant and fungus are examples.
Kingdom is a significant classification category. Examples include the animal, plant, and fungus.
Kingdom Monera, Kingdom Prokaryotes, Kingdom Fungi, Kingdom Protists, Kingdom Animalia, Viruses, Viroids, and Lichens make up the biological classification. Early in the 20th century, the two kingdoms were enlarged into five kingdoms: Protista (single-celled eukaryotes); Fungi (fungi and related organisms); Plantae (plants); Animalia (animals); and Monera. This was done because it became very difficult to categorise some living things into one another (the prokaryotes). Scientists categorise living things into major categories known as kingdoms. Each kingdom is split up into more compact groups. Previously, scientists divided all forms of life into the two kingdoms of plants and animals.
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Which of the following identifies Norman Borlaug's primary contribution to high-yield agriculture?
O the development of high-yield hybrid grain
O the development of synthetic fertilizers
O the development of SRI rice farming techniques
O the development of genetically modified grains
Norman Borlaug's primary contribution to high-yield agriculture identifies the development of high-yield hybrid grain.
Who is Norman Borlaug?
Norman Borlaug was an American agronomist and humanitarian who is known as the “Father of the Green Revolution” that enabled the world to produce enough food to feed its rapidly growing population. He is credited with saving over a billion people from starvation through his advancements in agricultural technology and crop breeding. He was awarded the Nobel Peace Prize in 1970 for his work. He also received the Presidential Medal of Freedom and the Congressional Gold Medal. He was a professor at Texas A&M University for many years and founded the World Food Prize in 1986. He developed high-yield, disease-resistant varieties of wheat, which he then helped to distribute around the world, saving millions of lives from starvation. His work also laid the groundwork for future agricultural advances, such as genetically modified crops.
Norman Borlaug is credited with developing high-yield hybrid grain, which is credited with saving millions of lives in regions facing food shortages. He is also known as the "Father of the Green Revolution" for his work in this field.
Therefore, the development of high-yield hybrid grain is the correct answer.
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Which of these is the correct amino acid chain produced from the DNA template strand? Answer A Arginine - Leucine - Proline - Asparagine - Lysine - Arginine B Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Phenylalanine C Serine - Leucine - Proline - Asparagine - Lysine - Arginine D Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Serine
The correct amino acid chain produced from the DNA template strand is Arginine - Leucine - Proline - Asparagine - Lysine - Arginine.
What is Amino acid?All amino acids have unique components, configurations and structures as this allows them to have various types of functions.
Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins.
Nonessential means that our bodies can produce the amino acid, even if we do not get it from the food we eat. Nonessential amino acids include alanine, arginine, asparagine, aspartic acid.
Therefore, The correct amino acid chain produced from the DNA template strand is Arginine - Leucine - Proline - Asparagine - Lysine - Arginine.
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Is the yeast we use for baking bread considered "alive"? Students in biology class made the claim that yeast is a living thing. To find evidence, they were given a beaker containing warm water (22oC). To that, they added one package of dry baker’s yeast and 0.5 grams of sugar. After waiting 20 minutes, the students made the observations recorded in the data table seen here.
Yes, the yeast used for baking bread is considered alive.
Is the yeast we use for baking bread considered "alive"?Based on the observations recorded in the data table, it is clear that the yeast was living since it was able to absorb the sugar and produce carbon dioxide and alcohol.this is evidence of metabolism, a process associated with life.Yes, the yeast used for baking bread is considered alive. The students' experiment revealed signs of life in the yeast, as it had increased in size and produced carbon dioxide gas bubbles.This is a classic example of fermentation, which is a metabolic process that is carried out by living organisms. Fermentation is a process that breaks down sugars and starches and releases energy, carbon dioxide, and alcohol as a byproduct.This is a result of the activity of enzymes that are produced by the yeast. This is a classic example of the fermentation theory, which states that living organisms can produce energy from sugars and starches. This theory was first formulated by Louis Pasteur in the 19th century.To learn more about fermentation refer to:
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I need help please thanks.
The part of a plant that acts as a transportation system, moving water, minerals and other chemicals around in the plant is the 'vascular tissue system'.
What do you mean by transportation?
Transportation in plants refers to the movement of materials throughout the plant. This includes the movement of water, nutrients, and other substances from roots to shoots, and from leaves to flowers and fruits. The movement of substances is usually done through the plant's vascular system, which includes the xylem (water transport) and phloem (nutrient transport).
The vascular tissue system basically is made up of two types of tissue, xylem and phloem. Xylem tissue is responsible for transporting water and minerals from the roots to the leaves, stems and other parts of the plant. Phloem tissue is responsible for transporting organic compounds, such as sugars, from the leaves and other parts of the plant to the roots and other parts of the plant. Both of these tissues work together to ensure that the plant is able to transport the nutrients it needs to grow and thrive.
Hence, option D is correct.
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Why does DNA have so many names?
The location of the sugar and how they were discovered are typically to blame for the various naming standards.
what is DNA?A polymer made of two polynucleotide chains that coil around one another to form a double helix is called deoxyribonucleic acid. All known organisms and many viruses have genetic information in the polymer that is necessary for their development, operation, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid.
what is the function of DNA?DNA has the job of storing all the genetic data needed for an organism to grow, operate, and reproduce. In essence, it is the biological manual that is present in each of your cells. The four letters A, T, C, and G make up the basic alphabet used to encode the instructions in DNA.
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The role of DNA includes all of the following EXCEPT:
A. storing genetic information in a cell.
B. copying genetic information in a cell.
C. translating genetic information in a cell
D. transmitting genetic information in a cell.
Answer:
i think it is C DNA does not translates gentic info.
Explanation:
It is tRNA transfer RNA that does this.
Answer:
C. translating genetic information in a cell
Explanation:
I did research pls tell if wrong
the upper and lower teeth are embedded in the: a. condyloid processes. b. symphysis menti. c. palatine processes. d. alveolar processes.
The upper and lower teeth are embedded in alveolar processes. The correct answer is D.
The structure that secures the roots of your teeth is known as the alveolar process, commonly referred to as the alveolar bone. For both your top and bottom rows of teeth, you have a thick bone alveolar process.
The area directly above your top row of teeth and beneath your bottom row. The bottom process is situated directly over your jawbone, whereas the top process is more precisely situated beneath your maxillary sinus.
The arrangement of your teeth and the performance of your periodontal ligament depend on the alveolar process, which joins your teeth to your jawbone (PDL). Due to its special ability, the alveolar process can tolerate the forces that chewing places on your mouth.
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why is revaccination required every time a new seasonal influenza strain arises? the immune system is only capable of producing antibodies against seasonal influenza strains for a year after vaccination. the antibodies in a vaccine only kill the virus currently infecting a host and must be readministered with each new infection. newly evolved influenza strains may have mutations that help antibodies bind more effectively to the surface proteins on the virus. the immunity acquired for one seasonal influenza strain does not protect against new strains with different surface proteins.
Because immunity wanes after a year and because the viruses used to make the vaccine are changed practically each year, influenza vaccination is administered each year.
Influenza viruses are members of the Orthomyxoviridae family and have a single-stranded segmented RNA genome. Based on their core proteins, influenza viruses are divided into kinds A, B, and C. Type A viruses are further split into groups based on whether their envelope glycoproteins have neuraminidase (NA) or haemagglutinin (HA) activity. The influenza virus experiences significant rates of mutation and frequent genetic reassortment (combination and rearrangement of genetic material), characteristics of many RNA genome viruses that cause variation in HA and NA antigens. Antigenic drift, which regularly occurs in influenza A strains due to small protein structural changes, allows the virus to repeatedly produce influenza outbreaks by eluding immunological detection. Reassortment from several influenza A strains results in significant alterations in the influenza type A HA antigen, or "antigenic shift.
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5. Your friends say that they saw a special nail polish that changes color when it is out in the sun. Can light from the sun cause the nail polish to change color? a No. Light is not a physical thing so it cannot change physical things like nail polish. B Yes. Light from the sun can pull energy out of the nail polish: causing it to change color C Yes. The nail polish can take in energy from the light causing it to change color. No. Light can only change things by warming them up, so it cannot cause the nail polish to change color.
Option C. Yes. The nail polish can take in energy from the light causing it to change color.
The nail polish is likely made with a special pigment or chemical that is sensitive to light, specifically UV light. When the nail polish is exposed to UV light, such as sunlight, the pigment or chemical reacts and changes color. This is a common feature in "thermochromic" or "photochromic" nail polishes. The light energy causes a chemical reaction that results in a change in the color of the polish. This is different from light just warming something up as option D suggests.
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Option C. Yes. The nail polish can take in energy from the light causing it to change color.
The nail polish is likely made with a special pigment or chemical that is sensitive to light, specifically UV light. When the nail polish is exposed to UV light, such as sunlight, the pigment or chemical reacts and changes color. This is a common feature in "thermochromic" or "photochromic" nail polishes. The light energy causes a chemical reaction that results in a change in the color of the polish. This is different from light just warming something up as option D suggests.
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List cell structures too small to observe using the compound light microscope.
The structure that are smaller the wavelength of visible light cannot be seen by compound microscope.
These small structures that doesn't show up in microscope include, for instance:
Ribosomes are tiny, spherical organelles that are in charge of producing proteins.Mitochondria: These are the organelles in charge of supplying the cell with energy.Endoplasmic reticulum: This system of stacked, flattened sacs is important in the creation of proteins and lipids.Proteins and lipids are sorted, modified, and transported under the control of the Golgi apparatus.Microfilaments: These tiny cytoskeletal filaments aid in giving cells their mechanical strength.Microvilli: These are tiny, finger-like protrusions that enhance the surface area of cells and are involved in absorbing and secreting substances. TCilia: These two tiny, hair-like organelles are used for movement and are called cilia and flagella.To know more about microscope, click here,
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Cell structures too small to observe using the compound light microscope include ribosomes, lysosomes, and mitochondria.
Ribosomes are small organelles, approximately 20 nanometers in diameter, which are responsible for the production of proteins.
Lysosomes are membrane-bound organelles that contain hydrolytic enzymes to break down cellular materials, and they are typically around 0.5-1.0 micrometers in diameter.
Mitochondria are organelles responsible for energy production and are typically between 0.5 and 1.0 micrometers in size, but can be up to 10 micrometers in size.
All of these cell structures are too small to be seen with a compound light microscope, which is only capable of magnifying objects up to approximately 1,000x, which is not enough to observe these small organelles.
To observe these cell structures, a higher-powered microscope is needed, such as an electron microscope, which is capable of magnifying objects to a much greater degree.
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the most common type of personal protective equipment available for first aiders to protect against blood borne pathogens is:
Gloves are always required, but gowns, face shields, eye protection, and pocket masks may also be required. Latex gloves and gowns-gloves and gowns protect your skin and hands from blood contact.
Personal protective equipment, such as gloves, gowns, masks, eye protection (e.g., goggles), and face shields, are both required by the Bloodborne Pathogens standard (29 CFR 1910.1030) and the CDC's recommended standard precautions to protect employees from infectious diseases.
Gloves, gowns, laboratory coats, face shields or masks, eye protection, pocket masks, and other protective gear are examples of personal protective equipment. The PPE used must be suitable for the task.
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