Concept explainers
Below is a life table for a hypothetical organism.
What is the expected lifetime reproductive success for individuals carrying the A1 allele? (Note: RS: reproductive success)
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2.35 |
|
2.50 |
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2.64 |
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3.66 |
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24.00 |
Follow up on the previous question. If a mutation occurred such that A2 allele appeared in this population. The new allele has the effect of reproducing one year earlier but at the cost of not being able to reproduce after age 6. Can A2 allele be selected for and subsequently fixed in the population?
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Yes, because A2 allele exhibits the antagonistic pleiotropic effect. |
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Yes, because carriers of the A2 allele have a higher expected lifetime reproductive success than the individuals carrying the A1 allele. |
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No, because carriers of the A2 allele live fast, therefore they will always die young. |
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No, because the carriers of the A2 allele have a lower expected lifetime reproductive success. Therefore, the A2 allele is a deleterious allele. |
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Not enough information in this problem that would allow us to make an informed prediction. |
Follow up on the previous question. If an A2-carrying individual were to live to the end of the fourth year, how many progenies would have the individual produced?
|
1.79 |
|
3 |
|
7 |
|
9 |
|
18 |
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