1. ____ movement of alleles between populations 2. ____ all the genetic information in a group of interbreeding individuals 3. ____ differential reproductive success determined by the environment 4. ____ evolutionary mechanism that results in a change in the physical structure of DNA 5. ____ evolutionary mechanism that has greater effect in small populations 6. ____ change in a population’s allele frequency through time 7. ____ a group of potentially interbreeding individuals 8. ____ evolutionary mechanism that results from the imperfect sampling of alleles 9/10. ____&_____ two mechanisms for the introduction of new alleles into a population A. population B. evolution C. gene pool D. gene flow E. genetic drift F. natural selection G. mutation
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Step 1: Gene flow is the movement of alleles between populations. Show more…
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The process of new mutations arising _____. A. does not contribute to evolution. B. is important in evolution because it provides the raw material for other forces that contribute to evolution. C. is itself a strong contributor to evolution, which is defined as the change in allele frequency in a population. D. allows organisms to respond to the selective pressures of their environment by developing new alleles. 2. Genetic drift _______. A. refers to the process in which individuals drift from one population to another. B. results from random sampling of individuals and/or gametes. C. only affects populations in which a very small number of individuals survive/reproduce. D. ensures that allele combinations with higher fitness increase in the population from one generation to the next.
Adi S.
1. What 2 factors are most commonly responsible for decreases in genetic variation? 2. What effect would increasing gene flow between 2 populations have on their gene pools? 3. New genetic information (alleles) can be introduced into a population through what mechanisms? 4. A population of what kind of organism would most closely resemble an equilibrium population that is not evolving? Explain why you think so (Hardy- Weinberg conditions).
Madhur L.
Match the evolution concepts. $$ \text { gene flow } \quad \quad\quad\quad\quad \text { a. source of new alleles } $$ $$ \text { natural selection } \quad \quad\quad\quad\quad \text { b. changes in a population's allele frequencies due to chance alone } $$ $$ \text { mutation } \quad \quad\quad\quad\quad \text { c. allele frequencies change owing to immigration, emigration, or both } $$ $$ \text { genetic drift } \quad \quad\quad\quad\quad \text { d. outcome of differences in survival, reproduction among individuals that vary in forms of shared traits } $$
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