Question

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

Binary fission
Binary fission

Emigration
Emigration

Genetic Drift
Genetic Drift

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

DNA replication
DNA replication

Formation of gametes
Formation of gametes

Genetic recombination
Genetic recombination

Reduction in chromosome number
Reduction in chromosome number
Question 3
Genetic variation within a population is necessary for:(1 point)
Responses

Natural selection
Natural selection

Mutation to occur
Mutation to occur

Extinction
Extinction

Asexual reproduction
Asexual reproduction
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

Speciation
Speciation

Mutation
Mutation

Genetic drift
Genetic drift

Gene flow
Gene flow
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

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

Different environments led to different adaptations
Different environments led to different adaptations

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

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

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 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 0% chance that the child will have MOGS-CDG.
There is a 0% chance that the child will have MOGS-CDG.
Question 7
Why is genetic variation critical for natural selection to occur?(1 point)
Responses

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

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

It prevents mutations in the species' genome
It prevents mutations in the species' genome
Question 8
How does gene flow affect genetic variation?(1 point)
Responses

Increases genetic variation between populations
Increases genetic variation between populations

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

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

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

Heritability of traits
Heritability of traits

Differential reproduction
Differential reproduction

Large population size
Large population size

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

Artificial selection
Artificial selection

Mutation
Mutation

Natural selection
Natural selection

Genetic drift
Genetic drift
Question 12
In a population of rabbits, individuals with thicker fur survive better in a cold climate. What is likely to happen over time?(1 point)
Responses

Rabbits with thinner fur will reproduce more
Rabbits with thinner fur will reproduce more

All rabbits will have the same fur thickness
All rabbits will have the same fur thickness

The population size will decrease
The population size will decrease

Rabbits with thicker fur will become more common

Answers

GPT-4o mini
Here are the answers to your questions:

**Question 1**: Which process increases genetic variation in a population?
- **Response**: Mutation

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

**Question 3**: Genetic variation within a population is necessary for:
- **Response**: 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:
- **Response**: 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.
- **Response**: 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?
- **Response**: There is a 0% chance that the child will have MOGS-CDG.

**Question 7**: Why is genetic variation critical for natural selection to occur?
- **Response**: It provides an increased likelihood that advantageous traits will be passed to the next generation

**Question 8**: How does gene flow affect genetic variation?
- **Response**: Increases genetic variation within a population

**Question 9**: Which of the following processes decreases genetic variation in small populations?
- **Response**: Genetic drift

**Question 10**: Which of the following is NOT required for natural selection to occur?
- **Response**: Large population size

**Question 11**: The survival of individuals with advantageous traits in a population is known as:
- **Response**: Natural selection

**Question 12**: In a population of rabbits, individuals with thicker fur survive better in a cold climate. What is likely to happen over time?
- **Response**: Rabbits with thicker fur will become more common

Make sure to double-check if this aligns with your learning materials for any specific nuances!

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