Natural selection, mutation, genetic drift, nonrandom mating, and gene flow are all mechanisms of ______ and can change allele frequencies in populations.

Answers

Answer 1

They are all mechanisms of Evolution and can change allele frequencies in populations

Natural selection, mutation, genetic drift and gene flow are all capable of causing varying changes in allele frequencies in a population. and these changes leads to the violation of Hardy-Weinberg assumptions

Hardy-Weinberg assumption states that; for a population to experience an unchanged allele frequencies, certain conditions must be met by the population such as ; absence of natural, random mating , absence of migration and absence of mutation.

Hence we can conclude that Natural selection , mutation, genetic drift and gene flow are all mechanisms of Evolution and can change allele frequencies in populations

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Related Questions

Which statements best describe the role of glucagon and insulin in this scenario

Answers

Glucagon was secreted by his pancreas before he ate the cookies because his blood glucose was low. Insulin was secreted after he ate the cookies because his blood glucose was high.

4. Describe the interrelationship between cell, tissue and organ of human body. ​

Answers

Answer and Explanation:

Cell: Molecules get grouped in alive cellular units that have auto replication capabilities. It is the smallest structural unit capable of functioning by itself. A cell is capable of communicating with other cells, their membranes delimitate them and protect them, constituting a selectively permeable barrier, receives signals from the exterior and responds in different ways to the different signals. There are different cells with different sizes, shapes, and forms.        

Tissue: A tissue is the organization and association of the same type of cells. Each tissue performs different functions. These tissues can be epithelial, adipose, nervous, muscular, and etcetera.

Organ: An organ is composed of different tissues that work together in a more complex function. Tissues form structures such as the heart, lung, kidney, brain, and etcetera. Each organ has its function.                                                                        

Organ systems: When different organs get associated and work together, they become a system. Working together in a stable way organs maintain homeostasis.

Two noncellular agents, smaller than viruses, are infectious RNA strands called ___ and infectious proteins called ___. prions; viroids prions; phages viroids; phages viriods; prions prions; capsomeres

Answers

Answer:

A. prions; viroids

Explanation:

PLZ HELP! what would happen to the current heliocentric model if entirely new evidence emerges that cannot be explained by the model?​

Answers

Answer:

At least give some answers to go by, anyway, if the evidence is not yet proven then nothing, if it is proven to be true(whatever it is) it would make us change the current model to support this new evidence.

Explanation:

Don't expect a perfect answer, I haven't done the question to know the answer choices, so this is all I can presume. and if somebody comes in here and pastes the answer from A.P.E.X without stating that they copied it I am going lose my mind.

homeostasis in unicellular organisms depends on the proper functioning of....?

Answers

Answer:

organelles

Explanation:

Are large erganle melecules found in living things like proteins,
carbohydrates, nuclele acids and lipids

Answers

Answer:

YES THEY ARE FOUND

Explanation:

what specific type of tissue makes up the intervertebral discs

Answers

Answer:Fibrocartilage

Explanation:

Fibrocartilage

Detail:
It is the tough, very strong tissue found predominantly in the intervertebral disks and at the insertions of ligaments and tendons; it is similar to other fibrous tissues but contains cartilage ground substance and chondrocytes.

Name the 2 different types of endoplasmic reticulum and explain the function of each type endoplasmic reticulum to the cell . (ie - what does each one 'produce', or make for the cell)

Answers

Answer:

The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.

Explanation:

Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.

Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones.

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in the monohybrid crosses performed by mendel, the f1 plants always displayed ____.

Answers

in the monohybrid crosses performed by mendel, the f1 plants always displayed one trait

The answer to your question would be; one trait

I hope this helps!

Under very high pressure, the volume of a given object will decrease. What effect has the pressure inside Earth likely had on the density of materials in Earth’s core?

Answers

The effects the pressure inside Earth likely had on the density of materials in Earth’s core

What is Earth's pressure?

It is made up of rock that is molten with slow-moving currents under the effect of increasing pressure and temperatures between 1,600 and 4,000 °F. Volcanic eruptions and earthquakes are caused by movement in the mantle layer.

Similar to how the temperature rises from the surface of the planet toward its center, so do the pressure. It is because of the heavy materials above, such as rocks.

The air density inside the International Space Station is kept at a level that is comparable to that of the surface of the planet. Consequently, the air pressure in the space station is equivalent to.

Therefore, the tremendous pressure inside Earth has the effect of reducing the volume of the materials, increasing their density.

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Answer:The high pressure decreased the volume of the materials, which caused their density to increase.

Explanation:

what is located in the autonomic nervous system

Answers

Answer:

It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.

Explanation:

The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS) contain both afferent and efferent fibers that provide sensory input and motor output, respectively, to the central nervous system (CNS). Generally, the SNS and PNS motor pathways consist of a two-neuron series: a preganglionic neuron with a cell body in the CNS and a postganglionic neuron with a cell body in the periphery that innervates target tissues. The enteric nervous system (ENS) is an extensive, web-like structure that is capable of function independently of the remainder of the nervous system. It contains over 100 million neurons of over 15 morphologies, greater than the sum of all other peripheral ganglia, and is chiefly responsible for the regulation of digestive processes.

Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III

Answers

Answer:

The answer is I ,II and III

Volcanic eruptions have immediate effects such as
AND long term effects such as
O global warming, hot lava
O global warming, lowering temperatures
O lowering temperatures, global warming
O hot lava, causing more hurricanes

Answers

Explanation:

Lowering temperatures and global warming

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Height in humans is a polygenic trait with a distribution similar to the graph shown Which is true concerning the distribution of
height in human populations? (1 point)
O Most individuals will be below average height
O Most individuals will be at the extremes of height
O Most individuals will be above average height
O Most individuals will be of average height

Answers

Answer:

The answer is D

i hope this helps buddy

Explanation:

RAPPY202

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approximately how many non-bacterial species are on earth?

Answers

Answer:

8.7 million

Explanation:

There are approximately 8.7m (give or take 1.3m) eukaryotic species on earth. Bacteria (and also archaea) are prokaryotic, not eukaryotic, so this number excludes them.

what is the effect of telomere caps on cancer cells?

Answers

The telomere caps help to maintain genome integrity. In consequence, these repetitive sequences are fundamental to avoid the generation of cancer cells.

Cancer cells are a type of cells that proliferates in an uncontrolled manner, which is generally associated with mutations in the genome capable of altering normal gene expression patterns.

Telomere caps are repeated nucleotide sequences found at the end of chromosomes, which help to maintain genome integrity.

The elimination of these repetitive sequences (telomere caps) due to successive cell divisions triggers chromosomal (genome) instability and thus contributes to the emergence of genomic rearrangements that may lead to carcinogenesis.

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Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces

Answers

Answer:

d.

Explanation:

...

how soon can a blood test detect pregnancy after conception

Answers

Answer:

5 weeks

Explanation:

I think so.

Pls mark as brainliest answer if it helps you

What is an example of a microorganism acting in a harmful way? Question 6 options: Bacteria infecting a cut. Bacteria aiding in digestion. Bacteria used to create yogurt. Fungi decomposing waste in a septic tank.

Answers

Answer:

I would say A but im not sure

Explanation:

Answer:

bacteria aiding in digestion

at what point in meiosis do sister chromatids separate?

Answers

Answer:

anaphase II

Explanation:

This is when the string like things pull the sister chromatids and move them towards opposite poles. And then in the next step they began to separate as two different cells

question:

at what point in meiosis do sister chromatids separate?

Answer :

Anaphase

Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.

The ______ contain the neurotransmitter, located in the _________. Neurotransmitter will be released only if the neuron sends a(an) ________.

Answers

Answer:

Is contained in the synaptic vesicles.

Located in the axon terminal of the presynaptic neuron.

Explanation:

Neurotransmitters are stored in the synaptic vesicles, clusted closed to the cell membrane at the axon terminal of the presynaptic neuron.Neurontransmitters are released into and diffuse across the synaptic cleft, where they bind to specific receptors on the membrane of the postsynaptic neuron.

"Hope this helps".

What is the name of the play that Hamlet presents to King Claudius?

Answers

Answer:

The Mousetrap

Explanation:

In act 3, scene 2 of William Shakespeare's Hamlet, Claudius asks Hamlet for the play's title, to which Hamlet replies, The Mousetrap. He says that the play presents the true story of a murder carried out in Vienna.

What would be most likely to happen to a plant that had working chloroplasts in its cells but had taken in a poison that kept mitochondria from working? (1 point)1.It would use its chloroplasts to do the work the mitochondria should have done.2.It would use the energy from the Sun to replace the energy provided by mitochondria.3.It would have a difficult time gathering enough solar energy during photosynthesis.4.It would not be affected since plants do not require mitochondria.

Answers

Answer:

It would use its chloroplasts to do the work the mitochondria should have done

PLEASE HELP ME IM TIMED!

Answers

Answer:

C

Explanation:

proteins have a chemical composition of hydrogen carbon oxygen nitrogen and sometimes sulfur

what organelle processes and sorts proteins to be shipped

Answers

Answer: The Golgi apparatus

Explanation: The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.

The organelle that processes and sorts proteins to be shipped is the Golgi apparatus. The Golgi apparatus is a stack of flattened sacs that is located near the nucleus of the cell.

It is responsible for processing and sorting proteins that have been made by the endoplasmic reticulum. The Golgi apparatus modifies proteins, packages them, and then ships them to their final destinations.

The Golgi apparatus has three main functions:

Modification: The Golgi apparatus modifies proteins by adding sugars, phosphates, and other molecules to them. This modification changes the properties of the proteins and makes them more functional.

Sorting: The Golgi apparatus sorts proteins into different vesicles. These vesicles are then transported to different parts of the cell, where the proteins are used.

Shipping: The Golgi apparatus ships proteins to different parts of the cell by fusing the vesicles with the cell membrane.

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Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
B. It is better for the cell if most molecules are prevented from
entering
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
Oh

Answers

Answer:

(B) It is better for the cell if most molecules are prevented from entering.

I hope this helped at all.


Use the same link to answer the following
question
Why Is Biodiversity Important? Who Cares?
Name three biological services provided by
biodiversity

Answers

Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.

What is Biodiversity?

Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.

Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.

Therefore, biodiversity is an important part of the biosphere.

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Answer:

Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.

What is Biodiversity?

Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.

Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.

Explanation:

One gene in the human genome may be expressed at a much higher level than another. Can differences in types of cis elements present account for this

Answers

Answer:

No, CREs usually don't account for differences in gene expression levels.

Explanation:

Cis-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene transcription. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate gene expression levels.

Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.

someone help me asap

Answers

Answer:

its c

Explanation:

because it has a definition on it

Label each of the components in the equation below. What type of reaction is shown in the equation? ​

Answers

Answer:

It's an esterification reaction

Glycerol + Fatty acid ---> Triacylglycerol or triglyceride

+3 water molecules

The chemical equations shown depict esterification and dehydration reactions.

What is a chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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