Which process increases genetic variation in a population?(1 point)

Question

Responses

Mutation
Mutation

Emigration
Emigration

Genetic Drift
Genetic Drift

Binary fission
Binary fission
Question 2
Which of the following is a result of crossing-over during meiosis?(1 point)
Responses

DNA replication
DNA replication

Genetic recombination
Genetic recombination

Reduction in chromosome number
Reduction in chromosome number

Formation of gametes
Formation of gametes
Question 3
Genetic variation within a population is necessary for:(1 point)
Responses

Mutation to occur
Mutation to occur

Natural selection
Natural selection

Asexual reproduction
Asexual reproduction

Extinction
Extinction
Question 4
A population of frogs lives in a wetland. A flood divides the population into two groups, creating different environmental pressures on each group. This situation may lead to:(1 point)
Responses

Mutation
Mutation

Gene flow
Gene flow

Genetic drift
Genetic drift

Speciation
Speciation
Question 5
A student compares two different species of fox as shown in the table below.

Artic Fox (Vulpes lagopus) Fennec Fox (Vulpes zerda)
Lives in the arctic tundra
Thick fur that varies in color based on the season
Short ears, legs, and snout
Dense fur on foot pads
Lives in the desert
Tan fur
Large ears
Slanted eyes
The student wants to explain why the two species are so different even though they have a common ancestor. Select the most likely rationale.

(1 point)
Responses

Each species migrated to environments that matched their adaptations.
Each species migrated to environments that matched their adaptations.

The same environment led to different adaptations.
The same environment led to different adaptations.

Each species developed the same adaptations to different environments.
Each species developed the same adaptations to different environments.

Different environments led to different adaptations
Different environments led to different adaptations
Question 6
A parent who is homozygous dominant (AA) for the MOGS-CDG doesn`t express that trait. If a parent who does not have the MOGS-CDG (AA) disorder has a child with a parent who has MOGS-CDG (aa), which of the following statements are true?(1 point)
Responses

There is a 0% chance that the child will have MOGS-CDG.
There is a 0% chance that the child will have MOGS-CDG.

There is a 25% chance that the child will have the Aa genotype
There is a 25% chance that the child will have the Aa genotype

There is a 75% chance that the child will show the dominant phenotype.
There is a 75% chance that the child will show the dominant phenotype.

There is a 100% chance that the child will inherit an allele for MOGS-CDG.
There is a 100% chance that the child will inherit an allele for MOGS-CDG.
Question 7
Why is genetic variation critical for natural selection to occur?(1 point)
Responses

It prevents mutations in the species' genome
It prevents mutations in the species' genome

It eliminates harmful traits from the species' genome
It eliminates harmful traits from the species' genome

It ensures all individuals have equal fitness in a population
It ensures all individuals have equal fitness in a population

It provides an increased likelihood that advantageous traits will be passed to the next generation
It provides an increased likelihood that advantageous traits will be passed to the next generation
Question 8
How does gene flow affect genetic variation?(1 point)
Responses

Increases genetic variation within a population
Increases genetic variation within a population

Increases genetic variation between populations
Increases genetic variation between populations

Has no effect on genetic variation
Has no effect on genetic variation

Reduces genetic variation within a population
Reduces genetic variation within a population
Question 9
Which of the following processes decreases genetic variation in small populations?(1 point)
Responses

Mutation
Mutation

Genetic drift
Genetic drift

Gene flow
Gene flow

Independent assortment
Independent assortment
Question 10
Which of the following is NOT required for natural selection to occur?(1 point)
Responses

Differential reproduction
Differential reproduction

Variation in traits
Variation in traits

Large population size
Large population size

Heritability of traits
Heritability of traits
Question 11
The survival if individuals with advantageous traits in a population is known as:(1 point)
Responses

Natural selection
Natural selection

Artificial selection
Artificial selection

Genetic drift
Genetic drift

Mutation

Answer 1

Here are the correct answers for each question based on your prompts:

Question 1: Which process increases genetic variation in a population?

• Answer: Mutation

Question 2: Which of the following is a result of crossing-over during meiosis?

• Answer: Genetic recombination

Question 3: Genetic variation within a population is necessary for:

• Answer: Natural selection

Question 4: A population of frogs lives in a wetland. A flood divides the population into two groups, creating different environmental pressures on each group. This situation may lead to:

• Answer: Speciation

Question 5: The student wants to explain why the two species are so different even though they have a common ancestor. Select the most likely rationale.

• Answer: Different environments led to different adaptations

Question 6: If a parent who is homozygous dominant (AA) for the MOGS-CDG doesn’t express that trait, and has a child with a parent who has MOGS-CDG (aa), which of the following statements are true?

• Answer: There is a 0% chance that the child will have MOGS-CDG.

Question 7: Why is genetic variation critical for natural selection to occur?

• Answer: It provides an increased likelihood that advantageous traits will be passed to the next generation

Question 8: How does gene flow affect genetic variation?

• Answer: Increases genetic variation within a population

Question 9: Which of the following processes decreases genetic variation in small populations?

• Answer: Genetic drift

Question 10: Which of the following is NOT required for natural selection to occur?

• Answer: Large population size

Question 11: The survival of individuals with advantageous traits in a population is known as:

• Answer: Natural selection

Please let me know if you need any further assistance!