Biology

Genetics and Evolutionary Biology

1,123 Questions

Genetics and evolutionary biology explain how traits are passed from parents to offspring and how species change over time. Key concepts include genetic drift, inbreeding, and heredity. This topic is fundamental for the biology section of many competitive tests.

Heredity and traitsGenetic variations and driftInbreeding conceptsEvolutionary mechanisms

Genetics and Evolutionary Biology Questions

Multiple choice

What is the term used to describe the genetic variance in a population that is due to paternal effects?

  1. Heritability

  2. Gene Action

  3. Epistasis

  4. Linkage
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Paternal Genetic Variance is the genetic variance in a population that is due to paternal effects.

Multiple choice

Which of the following is NOT a type of genetic variation in microorganisms?

  1. Mutation

  2. Recombination

  3. Gene transfer

  4. Epigenetics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Epigenetics is not a type of genetic variation in microorganisms. It refers to changes in gene expression that do not involve changes in the DNA sequence.

Multiple choice

What is the process by which a microorganism changes its genetic material in response to environmental conditions?

  1. Mutation

  2. Recombination

  3. Gene transfer

  4. Epigenetics
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mutation is the process by which a microorganism changes its genetic material in response to environmental conditions. Mutations can be caused by a variety of factors, such as exposure to radiation or chemicals.

Multiple choice

What is the term for a change in gene expression that does not involve changes in the DNA sequence?

  1. Mutation

  2. Recombination

  3. Gene transfer

  4. Epigenetics
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Epigenetics is the term for a change in gene expression that does not involve changes in the DNA sequence. This can occur through a variety of mechanisms, such as DNA methylation and histone modification.

Multiple choice

What is the term for the process by which a microorganism changes its genetic material in response to environmental conditions?

  1. Mutation

  2. Recombination

  3. Gene transfer

  4. Epigenetics
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mutation is the term for the process by which a microorganism changes its genetic material in response to environmental conditions. Mutations can be caused by a variety of factors, such as exposure to radiation or chemicals.

Multiple choice

What is the study of the distribution of genetic variation across a geographic area called?

  1. Phylogeography

  2. Population Genetics

  3. Genetic Variation

  4. Evolution
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Phylogeography is the study of the distribution of genetic variation across a geographic area, and how this variation is influenced by historical and contemporary processes.

Multiple choice

What is the term for the presence of differences in DNA sequences between individuals of a species?

  1. Genetic Variation

  2. Population Genetics

  3. Phylogeography

  4. Evolution
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic variation is the presence of differences in DNA sequences between individuals of a species.

Multiple choice

What is the name of the process by which genetic variation is reduced in a population?

  1. Genetic Drift

  2. Natural Selection

  3. Mutation

  4. Gene Flow
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic drift is the process by which genetic variation is reduced in a population due to random sampling.

Multiple choice

What is the term for the process by which genetic variation is increased in a population?

  1. Mutation

  2. Gene Flow

  3. Genetic Drift

  4. Natural Selection
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mutation is the process by which genetic variation is increased in a population due to changes in DNA sequences.

Multiple choice

What is the name of the process by which genetic variation is transferred from one population to another?

  1. Gene Flow

  2. Mutation

  3. Genetic Drift

  4. Natural Selection
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gene flow is the process by which genetic variation is transferred from one population to another due to the movement of individuals.

Multiple choice

What is the term for the process by which natural selection acts on genetic variation to produce adaptations?

  1. Natural Selection

  2. Mutation

  3. Genetic Drift

  4. Gene Flow
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Natural selection is the process by which natural selection acts on genetic variation to produce adaptations.

Multiple choice

What is the name of the pattern of genetic variation that is found in a population that has been divided into two or more geographically isolated groups?

  1. Allopatric Speciation

  2. Sympatric Speciation

  3. Parapatric Speciation

  4. Adaptive Radiation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Allopatric speciation is the pattern of genetic variation that is found in a population that has been divided into two or more geographically isolated groups.

Multiple choice

What is the term for the pattern of genetic variation that is found in a population that has been divided into two or more geographically overlapping groups?

  1. Allopatric Speciation

  2. Sympatric Speciation

  3. Parapatric Speciation

  4. Adaptive Radiation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sympatric speciation is the pattern of genetic variation that is found in a population that has been divided into two or more geographically overlapping groups.

Multiple choice

What is the name of the pattern of genetic variation that is found in a population that has been divided into two or more geographically adjacent groups?

  1. Allopatric Speciation

  2. Sympatric Speciation

  3. Parapatric Speciation

  4. Adaptive Radiation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Parapatric speciation is the pattern of genetic variation that is found in a population that has been divided into two or more geographically adjacent groups.

Multiple choice

What is the term for the pattern of genetic variation that is found in a population that has undergone a rapid diversification of species?

  1. Allopatric Speciation

  2. Sympatric Speciation

  3. Parapatric Speciation

  4. Adaptive Radiation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Adaptive radiation is the pattern of genetic variation that is found in a population that has undergone a rapid diversification of species.