Question

In: Biology

Answer parts a and b in regards to natural selection and variation within and between populations....

Answer parts a and b in regards to natural selection and variation within and between populations. Be clear about which part you are answering.

a. How does natural selection impact variation within a population?
b. How does natural selection impact variation between populations; be specific about this answer (Hint: there's more than one option here).

Solutions

Expert Solution

Natural selection acts on an organism’s phenotype. Phenotype is often largely a product of genotype (the gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next –, it can cause microevolution.


Related Solutions

Identify the requirements necessary for natural selection to occur. This includes: a) variation B) limits to...
Identify the requirements necessary for natural selection to occur. This includes: a) variation B) limits to population growth c) differential reproductive success with respect to traits d) inheritance of traits e) time
Natural selection tends to reduce genetic variation within a population by disfavouring particular alleles. However, in...
Natural selection tends to reduce genetic variation within a population by disfavouring particular alleles. However, in some situations selection can help maintain genetic variation rather than erode it. Explain how this can happen using an example.
Distinguish between sex, recombination and mutation for generating variation for natural selection and evolution.
Distinguish between sex, recombination and mutation for generating variation for natural selection and evolution.
For natural selection to happen, there must be variation present in a population. This is true...
For natural selection to happen, there must be variation present in a population. This is true because in a population without variation Select one: a. Change between generations can't happen b. If there is only one trait, it must be advantageous, and thus change is not necessary. c. There is no inter-individual competition. d. Offspring never inherit mutations.
Which of the following processes creates new genetic variation? A) Natural Selection B) Genetic Drift C)...
Which of the following processes creates new genetic variation? A) Natural Selection B) Genetic Drift C) Mutation D)Both A and B E) Both B and C
Whys is genetic variation necessary to the process of natural selection? What processes provide genetic variation...
Whys is genetic variation necessary to the process of natural selection? What processes provide genetic variation and how do they work?
1.For natural selection to occur, variation must exist. This is true because without variation Group of...
1.For natural selection to occur, variation must exist. This is true because without variation Group of answer choices there is no way for change to occur between generations. traits are never inherited by offspring. there is no competition among individuals. the one trait that exists is always advantageous, and change is not necessary. 2.Even though natural selection was named after the artificial selection that plant and animal breeders use, it really refers to the Group of answer choices variable ability...
Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time....
Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time. In each of the table cells, choose one of the options in the drop-down menu that appears. Genetic variation within a population Genetic variation between multiple populations Mutation                            [ Select ]                       ["increases", "decreases", "can either increase or decrease", "stays the same"]                     ...
The distinction between artificial selection and natural selection is important to master.
The distinction between artificial selection and natural selection is important to master. Consider a bacteria that does not cause human disease. Describe these processes using illustrative examples. Your examples may be fictitious, but they need to be realistic and make biological sense 1. Describe a specific example in which the bacteria changes (evolves) in a manner that Illustrates artificial selection. Your description should contain an explanation 2. Describe a specific example in which the bacteria changes (evolves) in a manner that illustrates...
What are the three addítional sources of genetic variation within sexually reproducing populations?
What are the three addítional sources of genetic variation within sexually reproducing populations? Briefly describe how each contributes to genetic variation?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT