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Microevolution and Mechanisms of Evolution

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Microevolution and Mechanisms of Evolution

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Questions and Answers

What is the primary unit of study in evolutionary processes?

Individual organisms
Ecosystems
Species
Populations (correct)

What is the term for the change in percentages of alleles within a population?

Natural selection
Macroevolution
Genetic drift
Microevolution (correct)

What is the source of genetic variation in a population?

Natural selection
Genetic drift
Gene flow
Mutations (correct)

What is the process by which alleles move from one population to another?

Gene flow (B) Signup and view all the answers

What is the result of increased genetic variation in a population?

Increased chance of adaptation to changing environments (C) Signup and view all the answers

Which process is most significant in the formation of new species?

Natural selection (B) Signup and view all the answers

What is the primary effect of gene flow on a population?

It changes allele frequencies and increases genetic diversity (C) Signup and view all the answers

Why do grey wolves travel great distances to find a neighboring pack?

To mate with an individual in that pack (C) Signup and view all the answers

What is the result of non-random mating in a population?

It increases the proportion of homozygous individuals (D) Signup and view all the answers

Why do male caribou spar with each other?

To be able to mate with a female in the herd (B) Signup and view all the answers

What is the advantage of self-fertilization in pea plants?

It ensures reproduction if pollination is unsuccessful (B) Signup and view all the answers

What is the effect of inbreeding on a population?

It increases the expression of harmful recessive alleles (D) Signup and view all the answers