Mechanisms of Evolution in General Biology

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What is the term used to describe the difference in appearance between males and females of the same species?

Sexual selection

Natural selection

Reproductive success

Sexual dimorphism (correct)

In which type of sexual selection do the members of one sex (usually female) choose their mates from among multiple individuals of the opposite sex?

Reproductive success

Type 2 (correct)

Mutation

Type 1

Which type of sexual selection involves members of one sex (usually males) competing among themselves for access to the opposite sex?

Type 1 (correct)

Type 2

Reproductive success

Mutation

What is the term used to describe a change in an organism's DNA sequence that introduces a new allele to a population?

Mutation Signup and view all the answers

Which of the following is not a mechanism of evolution mentioned in the text?

Genetic drift Signup and view all the answers

Which type of sexual selection can lead to the development of distinctive structures, such as horns or antlers, in one sex?

Type 1 Signup and view all the answers

What is the primary mechanism by which a population may gain or lose alleles?

Gene flow Signup and view all the answers

Which of the following statements about the effects of a mutation is correct?

A mutation can be harmful, neutral, or beneficial depending on how it affects the encoded protein. Signup and view all the answers

How does genetic drift differ from mutation in its effect on a population's diversity?

Genetic drift decreases diversity, while mutation increases diversity. Signup and view all the answers

Which type of genetic drift occurs when a small group of individuals leaves its home population and establishes a new, isolated settlement?

Founder effect Signup and view all the answers

What is required for a mutation to affect evolution, according to the text?

The mutation must be passed on to subsequent generations. Signup and view all the answers

What is the primary cause of the bottleneck effect in a population's genetic diversity?

A rapid decrease in population size Signup and view all the answers

How does non-random mating affect evolution, according to the text?

Non-random mating can change allele frequencies in a population. Signup and view all the answers

How does genetic drift differ from natural selection in its effect on a population's evolution?

Genetic drift is a random process, while natural selection is a directed process. Signup and view all the answers

Which of the following is NOT a mechanism of evolution?

Gene flow Signup and view all the answers

Which of the following is not mentioned in the text as a mechanism of evolution?

Genetic drift Signup and view all the answers

How does mutation affect evolution in asexually reproducing organisms?

In asexually reproducing organisms, each mutated cell gives rise to mutant offspring if the mutation does not prevent reproduction. Signup and view all the answers

What is the main difference between mutation and non-random mating as mechanisms of evolution, according to the text?

Mutation requires the inheritance of the new trait, while non-random mating does not. Signup and view all the answers

Mechanisms of Evolution in General Biology

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Questions and Answers

What is the term used to describe the difference in appearance between males and females of the same species?

In which type of sexual selection do the members of one sex (usually female) choose their mates from among multiple individuals of the opposite sex?

Which type of sexual selection involves members of one sex (usually males) competing among themselves for access to the opposite sex?

What is the term used to describe a change in an organism's DNA sequence that introduces a new allele to a population?

Which of the following is not a mechanism of evolution mentioned in the text?

Which type of sexual selection can lead to the development of distinctive structures, such as horns or antlers, in one sex?

What is the primary mechanism by which a population may gain or lose alleles?

Which of the following statements about the effects of a mutation is correct?

How does genetic drift differ from mutation in its effect on a population's diversity?

Which type of genetic drift occurs when a small group of individuals leaves its home population and establishes a new, isolated settlement?

What is required for a mutation to affect evolution, according to the text?

What is the primary cause of the bottleneck effect in a population's genetic diversity?

How does non-random mating affect evolution, according to the text?

How does genetic drift differ from natural selection in its effect on a population's evolution?

Which of the following is NOT a mechanism of evolution?

Which of the following is not mentioned in the text as a mechanism of evolution?

How does mutation affect evolution in asexually reproducing organisms?

What is the main difference between mutation and non-random mating as mechanisms of evolution, according to the text?

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