tell me what to circle onto the diagram that best shows the relationship between fish, cetaceans and mammals.
Answers
Answer:
The second one
Explanation:
The answer is the second branch.
Reasoning (you can skip this if you want):
Fish are just fish. Fish have evolved from fish and separated into mammals. Scientists can tell this because they all have backbones or just similar bones. Anyways, since fish went one way and mammals went the other, over many years they have evolved into many different species. And sometime, this guy down below evolved into cetaceans (over many, many of years). Cetaceans like dolphins or orcas are all mammals, so it had to have evolved from mammals.
Hope it helped! :>
Related Questions
Fill-In The Blank: Replication, RNA, and Transcription
DNA Structure Word Bank: You can use a term more than once.
Backbone DNA ligase cytosine deoxyribose DNA DNA polymerase
double helix hydrogen helicase nitrogenous base nucleotides 5’ to 3’ Okasaki fragments protein parent strands purines making proteins
3’ to 5’ pyrimidines ribose RNA 2 identical
single strand storing thymine uracil lagging strand
leading strand nucleus cytoplasm mRNA RNA Polymerase
DNA must replicate as part of cell division. The enzyme that causes DNA to unwind is called (1) helicase. It breaks the hydrogen bonds between the complementary nitrogenous base pairs, separating the double helix into two _(2)______________________. Each of these parent strands serves as a template for new DNA. The enzyme that connects complementary bases of free nucleotides is called (3)________________________. The new complementary strands are made in the (4)_______________direction. Thus, the parent strand is read in the (5) ___________direction. The (6) _________________is made in one continuous strand and follows in the same direction as helicase. The (7) ____________ is created in pieces, called (8) ____________. To connect these pieces, (9) __________ is used to insert the missing nucleotides. The end result is (10) ______________ copies of the original DNA molecule. This entire process takes place in the (11) _________________.
Ribose nucleic acid, (12)__________________ for short, is composed of the same subunits as DNA, except that the thymine bases are replaced with (13)______________________ bases and the sugar backbone is composed of a (14)______________________ sugar. RNA forms a (15)____________________________ structure. While DNA is responsible for (16)______________________ the genetic code, RNA uses the genetic code for _(17)_______________________________.
The process of transcription occurs in the _(18)____________. The purpose of this process is to copy a specific code in the DNA (called a gene) into (19)___________. Transcription begins when an enzyme called (20)_____________ opens DNA and reads the DNA in a (21) ______________ direction. As it does so, it creates an mRNA strand in the (22)___________ direction. When this process is completed, mRNA will eventually leave the (23)__________. MRNA will carry the DNA code on how to make a specific (24) ________
Answers
DNA must replicate as part of cell division. The enzyme that causes DNA to unwind is called helicase.
It breaks the hydrogen bonds between the complementary nitrogenous base pairs, separating the double helix into two single strands.
Each of these parent strands serves as a template for new DNA. The enzyme that connects complementary bases of free nucleotides is called DNA polymerase.
The new complementary strands are made in the 5' to 3' direction.
Thus, the parent strand is read in the 3' to 5' direction.
the leading strand is made in one continuous strand and follows in the same direction as helicase.
The lagging strand is created in pieces, called Okazaki fragments.
To connect these pieces, DNA ligase is used to insert the missing nucleotides.
The end result is 2 identical copies of the original DNA molecule.
This entire process takes place in the nucleus.
Ribose nucleic acid, RNA for short, is composed of the same subunits as DNA, except that the thymine bases are replaced with uracil bases and the sugar backbone is composed of a ribose sugar.
RNA forms a single-stranded structure.
While DNA is responsible for storing the genetic code, RNA uses the genetic code for making proteins.
The process of transcription occurs in the nucleus.
The purpose of this process is to copy a specific code in the DNA (called a gene) into mRNA.
Transcription begins when an enzyme called RNA polymerase opens DNA and reads the DNA in a 3' to 5' direction.
As it does so, it creates an mRNA strand in the 5' to 3' direction.
When this process is completed, mRNA will eventually leave the nucleus.
MRNA will carry the DNA code on how to make a specific protein.
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What is the primary purpose of the chromosomes in a cell's
nucleus?
a to transport materials into and out of the cell
b to break down food and convert it into energy
c to protect the cell from harmful bacteria
d to store the genetic code that determines an
organism's traits
Answers
Answer:
[tex]to \: store \: the \: genetic \\ \: code \: that \: determines \: \\ an \:
organism's \: traits[/tex]
Answer:
D.
Explanation:
The primary purpose of the chromosomes in a cell's nucleus is to store the genetic code that determines an organism's traits. Therefore, the correct answer is d.
g. what is the name of this type of point mutation and why is it referred to by this terminology?
Answers
Answer: The name of the type of point mutation that is being referred to by the given terminology is missense mutation.
The reason behind referring to it by this terminology is that a missense mutation is one that results in a different amino acid being incorporated into the protein sequence.
This can have a significant impact on protein function and can result in altered protein activity, stability, or localization. Hence, this type of mutation is referred to as a missense mutation.
A point mutation is a type of mutation that results from the substitution of a single nucleotide with another in the DNA sequence.
Point mutations are classified into different types, including silent, missense, and nonsense mutations, based on the effect they have on the protein sequence.
In a silent mutation, the nucleotide substitution does not result in a change in the amino acid sequence. In a missense mutation, the nucleotide substitution results in a different amino acid being incorporated into the protein sequence, which can have a significant impact on protein function.
In a nonsense mutation, the nucleotide substitution results in the formation of a premature stop codon, which leads to the truncation of the protein sequence.
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Helppp
Which statement is generally true of secondary succession but not of primary succession? (4 points)
O The end result is a mature forest community.
The pioneer community contains soil as opposed to barren rock.
O The process begins when lichens cause physical and chemical weathering.
The changes are triggered by natural disasters such as earthquakes and forest fires.
Answers
Answer:
The pioneer community contains soil as opposed to barren rock.
Explanation:
which of the following is an example of the impact of domestication? question 11 options: wheat can no longer blow away to sow seeds corn drops far too many seed kernels the coating on corn kernels is gone all of the above
Answers
All of the above is an example of the impact of domestication. So the correct answer is the last option.
Domestication is the process of adapting wild animals and plants for human use. As a result of domestication, some crops can no longer reproduce on their own, as is the case with wheat, which can no longer blow away to sow seeds. Additionally, corn drops too many seed kernels and has a thinner kernel coating as a result of domestication. The removal of kernel coating and the excessive number of seed kernels are both examples of how domestication has impacted corn.
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In mice white fur is recessive to gray fur. Cross a white male with a heterozygous brown female, and find the possible genotypic and phenotypic ratios
Answers
When a white male mouse is crossed with a heterozygous brown female mouse, the possible genotypic and phenotypic ratios of the offspring can be determined using the principles of Mendelian genetics.
Since white fur is recessive to gray fur, the white male mouse must be homozygous for the white allele, represented as "ww". The heterozygous brown female mouse must have one brown allele and one unknown allele, represented as "Bb".
Using a Punnett square, the possible offspring genotypes can be predicted. The gametes of the white male mouse are all "w", and the gametes of the heterozygous brown female mouse are "B" and "b". The Punnett square shows that there is a 50% chance of each offspring inheriting the "Bw" genotype and a 50% chance of each offspring inheriting the "bw" genotype.
The phenotypic ratios can be determined by considering the expression of the fur color alleles. Brown fur is dominant over white fur, and gray fur is dominant over white fur. Therefore, the possible phenotypes for the offspring are brown (BB or Bw), gray (Gw), and white (ww). Since the white allele is recessive, none of the offspring will have white fur in this cross.
Thus, the possible genotypic ratios of the offspring are 50% Bw and 50% bw, and the possible phenotypic ratios are 50% brown, 50% gray, and 0% white.
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Complete the following vocabulary exercise related to DNA replication.
Match the words in the left-hand column with the appropriate blank in the sentences in the right-hand column.
Answers
DNA replication is the process by which a cell's genetic material, DNA, is copied before cell division. During DNA replication, the strands of the double helix are unwound and split into two single strands. Each strand serves as a template for the creation of a new complementary strand.
This new double helix contains one strand that is original and one new strand. This process is semiconservative, meaning that one-half of the original DNA molecule is conserved in the newly created DNA molecule.
To complete the exercise, the four words in the left-hand column, DNA, double helix, replication, and semiconservative, must be matched with the blanks in the sentences in the right-hand column. DNA is the genetic material, double helix is the structure of the molecule, replication is the process by which DNA is copied, and semiconservative means one-half of the original DNA molecule is conserved in the newly created DNA molecule.
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The common structural pattern that is a distinguishing characteristic specific to all G-protein-coupled receptors is that they...
A. are transmembrane proteins.
B. have a kinase domain on the intracellular side of the plasma membrane.
C. are only active when pairs of receptors dimerize.
D. contain seven transmembrane helices.
Answers
The common structural pattern that is a distinguishing characteristic specific to all G-protein-coupled receptors is that they contain seven transmembrane helices (Option D). This structural pattern allows them to interact with G proteins and transmit signals across the plasma membrane.
G-protein-coupled receptors (GPCRs) are a class of cell surface receptors that respond to various extracellular signals such as light, odorants, hormones, and neurotransmitters. They are involved in a wide range of physiological and pathological processes, and they are also the targets of many drugs, making them an essential class of receptors to study.
The structural pattern specific to all G-protein-coupled receptors is that they contain seven transmembrane helices, which are arranged in a specific way to form a pocket that binds to extracellular ligands. This structural pattern is also known as the seven-transmembrane domain or 7TM domain. The seven transmembrane helices are arranged in a circular fashion, with the extracellular loops facing outwards and the intracellular loops facing inwards.
Thus, option D- contain seven transmembrane helices is the correct answer.
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which is a true statement about polygenes? polygenes are located on the same chromosome. polygenes are used to predict the genotype of progeny. polygenes interact and allow for continuous variation. polygenes allow geneticists to maintain any genotype.
Answers
Polygenes are a group of genes that are involved in the expression of a single trait and are located at different positions on different chromosomes. The first statement, which claims that polygenes are located on the same chromosome, is false.
Polygenes cannot be used to predict the genotype of progeny. Instead, they contribute to the phenotype of the individual. The second statement is false.The third statement is true. Polygenes are responsible for a range of continuous variation in quantitative traits such as height, weight, and skin color, among others. The variation in these traits is caused by the interaction of several genes at different locations, with each gene contributing a small effect.Polygenes are not capable of maintaining any genotype. While they play an important role in the expression of traits, they do not determine the genotype of an individual. Therefore, the fourth statement is false.To sum up, polygenes are a group of genes located at different positions on different chromosomes that interact to produce continuous variation in quantitative traits. However, they do not predict the genotype of progeny or maintain any genotype.
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which of the following mutations would be likely to produce s. pombe cells that are enlongated and which require a long time to complete mitosis ? group of answer choices a mutation that increases activity of cak. a mutation in cdk that prevents it from being phosphorylated by wee1. a mutation that increases activity of cdc25. a mutation that abolishes cdc25 activity. a mutation that abolishes wee1 activity
Answers
The mutation that would be most likely to produce S. pombe cells that are elongated and which require a long time to complete mitosis is the mutation that abolishes wee1 activity.
When the function of wee1 kinase is removed, the cell cycle is pushed forward, and cells take a longer time to complete mitosis because the cells spend more time in the G2 phase. During the S phase of the cell cycle, DNA replication occurs, which means that each chromosome produces two identical copies. Afterward, the cell goes through the G2 phase, during which the spindle formation is monitored, the cell ensures that each chromosome's DNA is replicated, and the chromatin is further condensed. This G2 phase ensures that the cell is ready to enter mitosis after G2 phase.
Finally, the cell enters the mitotic phase or M phase, during which the chromosomes are divided into daughter cells. So, a mutation that abolishes wee1 activity is most likely to produce S. pombe cells that are elongated and which require a long time to complete mitosis.
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Just need the answers
Answers
The muscles engaged when pushing against a wall are labeled in the attachment.
What are the muscles engaged when pushing against a wall?When pushing against a wall, several muscles in your upper body and lower body are engaged. The specific muscles involved depend on your body position, the force of the push, and the duration of the activity.
However, some of the main muscles that are commonly engaged when pushing against a wall include:
Chest muscles (Pectoralis major): These muscles are located in the front of your upper body and are responsible for bringing your arms across your chest.Shoulder muscles (Deltoids): The deltoid muscles are located on the upper part of the shoulder and are responsible for moving your arms away from your body.Triceps: The triceps muscles are located at the back of your upper arms and are responsible for extending your arms.Core muscles: When pushing against a wall, your core muscles, including your abdominal muscles and lower back muscles, are engaged to stabilize your torso and prevent injury.Leg muscles: Your leg muscles, including your quadriceps, hamstrings, and glutes, provide the power to push against the wall and maintain your body position.Learn more about muscles at; https://brainly.com/question/29851880
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Complete question:
What are the muscles engaged when pushing against a wall?
does the spermann mangold organizer act in a cell autonomous or non-autonomous manner? explain your answer.
Answers
The Spemann-Mangold organizer acts in a cell-autonomous manner. This means that the cells within the organizer are responsible for inducing the formation of other tissues and structures during development.
What is a cell-autonomous manner?Cell-autonomous action refers to a cellular function or process that is controlled exclusively by the cell. A process that is cell-autonomous is not reliant on any external signals from neighboring cells or tissues. A cell-autonomous process is one that is controlled by genes expressed exclusively in that cell, without the need for signals from other cells.
Similarly, the Spemann-Mangold organizer is a cluster of cells found in amphibian embryos that is capable of directing the differentiation of other cells in the developing embryo. This occurs in a cell-autonomous manner, with the cells within the organizer producing and responding to signals that cause other cells to differentiate into specific tissue types.
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describe how the chromosomes line up differently during metaphase in mitosis and meiosis i (first division of meiosis). remember that to state how they differ, you need to describe both!
Answers
The difference between metaphase in mitosis and meiosis is that in mitosis, chromosomes line up in a single file at the metaphase plate. While in meiosis I, homologous chromosomes line up in pairs at the metaphase plate.
Metaphase is a stage in cell division where chromosomes are lined up in the center of the cell. However, there are differences in how chromosomes line up during metaphase in mitosis and meiosis I. In mitosis, the chromosomes line up in a single file at the equator of the cell during metaphase. They are lined up in a single row, which is called the metaphase plate. In meiosis I, the chromosomes are lined up as homologous pairs, rather than in a single row like in mitosis. Homologous chromosomes line up in pairs at the metaphase plate.
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an individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring. these offspring are likely to be
Answers
When an individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring, the offspring are likely to be heterozygous for the trait.
In genetics, the terms homozygous and heterozygous are frequently used. Homozygous is a genetic term that refers to two matching alleles for a single characteristic or trait, such as BB or bb, for example. The term heterozygous refers to two alleles that differ from one another, such as Bb.
Individuals that are homozygous for a specific trait have two of the same alleles (BB or bb) while individuals that are heterozygous for the same trait have two distinct alleles (Bb).In this question, an individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce many offspring, the offspring are likely to be heterozygous for the trait. Heterozygous individuals have one dominant allele and one recessive allele. Therefore, half of the offspring would express the dominant trait, and the other half of the offspring would express the recessive trait.
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if you plan or structure this activity in order to increase cardiovascular function or muscle mass, it is called
Answers
When an activity is planned or structures to increase the cardiovascular function or muscle mass, it is termed as exercise.
Cardiovascular function is the role of the cardiovascular system of delivering blood, various substances like nutrients, hormones, and gases to the whole body, The cardiovascular system is also involved in the removal of wastes.
Exercise is any form of body activity which keeps the body active and healthy. Exercises are mainly focused in increasing the cardiovascular activity which helps the whole body to function efficiently, keep the heart healthy and body disease free. There are also other intense forms of exercise which results in increased muscle mass.
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prokaryotic organisms that use no3-, so42-, and co2 as final electron acceptors in an energy pathway that generates atp are conducting what energy pathway?
Answers
Prokaryotic organisms that use NO3-, SO42-, and CO2 as final electron acceptors in an energy pathway that generates ATP are conducting anaerobic respiration.
What is anaerobic respiration?Anaerobic respiration is a cellular respiration process in which electron acceptors other than oxygen are used to generate ATP. Although oxygen is not used as the final electron acceptor, anaerobic respiration can still produce a considerable amount of energy from glucose or other organic compounds. When living organisms break down sugars, fats, and other organic molecules to obtain energy, cellular respiration occurs.
In the presence of oxygen, this process is known as aerobic respiration, but in the absence of oxygen, it is known as anaerobic respiration. Because there is no oxygen present in anaerobic respiration, the electron transport chain cannot be used to generate ATP. Instead, alternative electron acceptors are used. These may be substances such as nitrate (NO3-), sulfate (SO42-), and carbon dioxide (CO2).
Anaerobic respiration is a characteristic of prokaryotes, particularly those that live in environments where oxygen is limited. Certain bacteria can carry out anaerobic respiration, but eukaryotic organisms such as humans cannot.
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3. which of the following is not an important ecosystem service provided by wetlands? flood control breeding habitat for birds migratory habitat for birds water filtration seed dispersal
Answers
The following is not an important ecosystem service provided by wetlands is a. Flood control.
Wetlands have a very large role in providing ecosystem services for human life and other creatures. Wetlands occur where water meets the ground. Examples of wetlands include mangroves, peatlands, swamps, rivers, lakes and deltas. Wetlands serve as water sources and purifiers, protect beaches and are the planet's largest carbon sinks.
Wetlands provide valuable services that are beneficial to living things in ecosystems such as water filtration, migratory bird habitats, seed dispersal, and bird breeding habitats, but usually do not provide flood control services.
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many communities don't have enough water (to drink, grow crops, etc. what are possible solutions to provide these communities with water.
Answers
Providing communities with access to clean water is an important challenge. Here are some potential solutions to consider: Desalination, Rainwater Harvesting, Greywater Recycling and Reduce Consumption.
Desalination: This is a process where salt and other minerals are removed from saltwater, making it safe to drink. Desalination plants can provide a reliable source of freshwater in arid areas.
Rainwater Harvesting: Collecting rainwater in tanks or underground pits is an ancient practice that can provide a source of freshwater in many parts of the world. This is especially useful in areas with limited access to other sources of water.
Greywater Recycling: This is the reuse of wastewater from baths, showers, and washing machines for irrigation or other non-potable purposes. Greywater recycling is becoming increasingly popular as a way to reduce water consumption.
Reduce Consumption: Installing low-flow fixtures and water-efficient appliances can help reduce water consumption in homes and businesses. This is one of the most cost-effective and sustainable solutions for providing communities with enough water.
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The diagram below shows some of the glands of the endocrine system.
To which of these glands does the black arrow point?
A. The thymus gland
B. The pituitary gland
C. The thyroid gland
D. The pineal gland
Answers
Answer: B. The pituitary gland.
Explanation:
There are three glands of the endocrine system that are located in your brain; the hypothalamus, the pineal gland, and the pituitary gland.
By looking at any diagram on the internet, you can clearly see that the pituitary gland is located near the ear on the side of your head.
I linked a diagram for more clarification.
Hope this helped!
Answer: The pituitary gland
which biome receives too little water to support the growth of trees? responses deciduous forest deciduous forest grassland grassland rain forest rain forest taiga
Answers
The biome that receives too little water to support the growth of trees is the grassland biome. Grasslands receive very little rainfall, so trees are unable to grow in these regions. This is why grasslands are also known as savannas.
The grassland biome receives too little water to support the growth of trees. A biome is a large area of the Earth's surface with comparable weather, fauna, and flora. The tundra, grassland, savanna, deciduous forest, boreal forest, and aquatic are examples of major terrestrial biomes. The grassland biome receives too little water to support the growth of trees. Because the grassland biome is dominated by grasses and other herbs, they don't grow tall enough to be classified as trees. As a result, grasslands have a lot of grasses and shrubs but few trees.
The savanna is an example of a grassland biome. The grassland biome receives between 25 and 75 cm of precipitation per year. Because they receive little precipitation, they are susceptible to drought. As a result, fires are common in this region as well.
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Answer:
Grasslands
Explanation: Grasslands have too little water to support trees as it does not rain very often in more temperate
the oxygen exchange between the red blood cells and the alveoli is driven by diffusion. this diffusion is due to the
Answers
The oxygen exchange between the red blood cells and the alveoli is driven by diffusion. this diffusion is due to the lower pressure of oxygen in the red blood cells.
Red blood cells, also known as erythrocytes, are one of the main types of blood cells in the human body. They are responsible for transporting oxygen from the lungs to the body's tissues, and carbon dioxide from the tissues to the lungs for removal. Red blood cells are biconcave discs that are small in size, measuring about 7.5 micrometers in diameter.
They contain a protein called hemoglobin, which binds with oxygen and gives the cells their characteristic red color. Red blood cells are produced in the bone marrow and have a lifespan of about 120 days. They are constantly being produced and broken down in the body, with the spleen playing a major role in removing old or damaged red blood cells.
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what is scurvy two symptoms of it
Answers
Answer:
Scurvy is a kind of disease which is caused due to a severe deficiency of Vitamin C or ascorbic acid in the body of an individual.
Explanation: Unavailability of sufficient nutrition or not enough intake of fruits and vegetables may lead to this type of diseases.
The symptoms includes-
1. Bleeding or swollen o f gums
2. Loosening of teeth
3. Bleeding under one's skin
4. Various spots on the skin red, blue colored.
when the action potential reaches the end of the axon, it triggers a release of chemical molecules called:
Answers
When the action potential reaches the end of the axon, it triggers the release of chemical molecules called neurotransmitters.
Neurotransmitters are chemicals that are released from one neuron and bind to receptors on other neurons. They can either excite or inhibit the receiving neuron, depending on the type of neurotransmitter released. Neurotransmitters travel across the synapse and, when they bind to their receptors, an electrical or chemical signal is sent to the receiving neuron.
This can lead to the formation of a new action potential, which can travel down the receiving neuron's axon and lead to further chemical reactions.
The overall process of neurotransmitter release, receptor binding, and electrical or chemical signals between neurons is what allows neurons to communicate with each other, resulting in the formation of memories, emotions, and responses to various stimuli.
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What type of growth pattern will the bats exhibit
Answers
Bats typically exhibit sigmoid or S-shaped growth curves, which are characteristic of many populations of living organisms.
What is the type of growth pattern in bats?In the early stages of growth, the bat population is small and has a slow rate of increase. As the population grows, it enters a period of rapid growth, where the rate of increase is high.
Eventually, the growth rate begins to slow down as the population approaches its carrying capacity, which is the maximum number of individuals that can be sustained by the available resources. At this point, the population stabilizes at its carrying capacity, and growth stops or becomes very slow.
This pattern of growth is common in many animal populations and is influenced by factors such as resource availability, predation, disease, and other environmental factors
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an evolutionary splitting event that gives rise to a distinct daughter species but with the persistence of the ancestral form is called
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An evolutionary splitting event that gives rise to a distinct daughter species but with the persistence of the ancestral form is called speciation.
Speciation is closely related to evolution, both of which are processes of change that gradually, bit by bit, gradually, slowly but surely occur.
Speciation occurs when a population of a species becomes geographically or reproductively isolated and is unable to interbreed with other members of the same species. This can lead to the formation of new species. Speciation occurs when gene flow between populations that originally existed has effectively subsided and is due to an isolation mechanism. Other factors that can cause speciation are mutation, hybridization, and domestication.
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If you were studying the functions of skeletal muscle, you would be studying all of the following except:
protecting internal organs.
movement.
holding the head erect.
production of blood cells.
helping maintain a constant body temperature.
Answers
Answer:
Helping maintain a constant body temperature
Explanation:
The skeletal muscle does not maintain body temperature
It aids movement
It serves as a form of protection for the internal organs for example rib cage for the liver
The bone marrow produces red blood cells
But the skeleton doesn't maintain the body temperature
information flow can be altered by mutation. describe three different types of mutations and their effect on protein synthesis
Answers
Mutations can alter the information flow in a cell and have a dramatic effect on protein synthesis. Point mutations, frameshift mutations, and insertions/deletions can all result in the production of a misfolded or non-functional protein, and they can also affect gene expression.
Mutations are changes in the genetic material of a cell, and they can alter the flow of information and affect protein synthesis. There are three main types of mutations that affect protein synthesis: point mutations, frameshift mutations, and insertions/deletions.
Point Mutations occur when a single base pair in the DNA is altered. This can result in an incorrect amino acid being incorporated into the protein, leading to a misfolded protein or a non-functional protein. Point mutations can also change the regulatory sequences, which can result in decreased or increased expression of a gene.
Frameshift Mutations happen when a single base pair is deleted or inserted into the DNA, resulting in the reading frame of the codon being shifted. This can drastically alter the protein that is produced, leading to a misfolded or non-functional protein.
Insertions/Deletions occur when one or more base pairs are added or removed from the DNA, respectively. This can result in the production of a truncated protein, or a non-functional protein. Insertions and deletions can also affect the regulatory sequences of the gene, which can lead to decreased or increased expression of a gene.
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I'm not sure if this is correct can someone please confirm for me, please?
Answers
Answer:
A chain of volcanic mountains will form on the edge of the continent or just offshore
Explanation:
When oceanic crust converges with continental crust, the denser oceanic plate subducts beneath the continental plate. This causes melting in the mantle above the plate and creates volcanoes on or near the edge of the continent. A deep ocean trench also forms offshore.
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what facilitates or mimics the activity of a given neurotransmitter system? group of answer choices axon agonist ssri antagonist
Answers
The term that facilitates or mimics the activity of a given neurotransmitter system is an agonist.
An agonist is a chemical that binds to a receptor and activates it to generate a biological response. This process mimics the activity of the natural neurotransmitter of the body.
Agonists interact with receptors to stimulate the normal physiological response that the receptor is meant to mediate. For instance, norepinephrine and epinephrine are agonists for adrenergic receptors.
The activation of neurotransmitter receptors by an agonist results in a variety of physiological effects. Agonists mimic the actions of a neurotransmitter, while antagonists oppose them. Antagonists attach to receptors and hinder the neurotransmitter from producing its biological effect. They don't, however, activate the receptor.
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a cell that has just started interphase has four chromosomes. how would the same cell look when it is in metaphase?
Answers
In metaphase, the cell would contain eight chromatids and eight separate chromosomes.
A cell is growing and replicating DNA during the interphase as it gets ready to divide. Each chromosome at this point is made up of two sibling chromatids that are joined together at the centromere. With each chromosome comprised of two identical sibling chromatids, a cell with four chromosomes that have just entered interphase would therefore have a total of eight chromatids.
The same cell has finished interphase and advanced to mitosis, the step of cell division, when it reaches metaphase. The chromosomes condense and arrange themselves along the metaphase plate, which is the cell's equatorial axis, during metaphase. Each chromosome can be seen as a unique and compact structure during this stage.
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