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Chapter 10, Problem 4MC
Summary Introduction

Introduction:

Founder effect occurs when a group of migrating organisms create a population with new alleles, in a place that was previously isolated.

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What condition(s) is/are necessary for the development of both antagonistic and mutualistic coevolutionary relationships?A. Intimate pairwise interactions with one or more species.B. The agents of selection that are relevant to the populations must evolve.C. Frequency-dependent selection.D. All of the above are necessary for the development of coevolutionary relationships.
A small number of animals moves away from a large ancestral population on the continental mainland and colonizes an island. Which of the following is likely to occur? A. Genetic diversity will decrease on the mainland, because of a population bottleneck. B. Alleles that were more rare on the mainland are likely to become more common on the island, because of the founder effect. C. Genetic diversity will be lower on the island than the mainland, because of the founder effect. D. Mutations rates will increase on the island, in response to selection pressures in the new environment.
Which of the following statements correctly describes the conditions of microevolution? Select one: a. Mutations happen randomly, and the environment provides selective pressure. b. Mates are chosen based on specific traits, and the bottleneck effect is prevented. c. Genes to flow from one population to another, and random mating occurs. d. The population is closed, and individuals are not allowed to immigrate or emigrate
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GCSE Biology - Adaptations #79; Author: Cognito;https://www.youtube.com/watch?v=tC-u8xcZYSM;License: Standard Youtube License