Question

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 0% chance that the child will have MOGS-CDG.
There is a 0% chance that the child will have 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
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 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 ensures all individuals have equal fitness in a population
It ensures all individuals have equal fitness in a population
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

Reduces genetic variation within a population
Reduces genetic variation within a population

Increases genetic variation within a population

Answers

GPT-4o mini
### Question about MOGS-CDG genetics:

Given the information that one parent is homozygous dominant (AA) and does not express the MOGS-CDG disorder (which we can assume is a recessive condition), and the other parent is homozygous recessive (aa) for the disorder, we can analyze the potential offspring.

1. The possible genotypes from these parents would be:
- Parent 1 (AA) can only contribute "A" alleles.
- Parent 2 (aa) can only contribute "a" alleles.

Using a Punnett square:

```
A A
-----------
a | Aa Aa
a | Aa Aa
```

From this, it is clear that all children will have the genotype "Aa".

### Responses Evaluation:
1. **There is a 100% chance that the child will inherit an allele for MOGS-CDG.**
- **False.** The child inherits "A" alleles only, which do not code for the disorder.

2. **There is a 0% chance that the child will have MOGS-CDG.**
- **True.** All children will be "Aa" and will not express the disorder since it is recessive.

3. **There is a 75% chance that the child will show the dominant phenotype.**
- **True.** All children will express the dominant phenotype (non-disorder).

4. **There is a 25% chance that the child will have the Aa genotype.**
- **False.** There is a 100% chance that the child will have the Aa genotype.

### Question about Genetic Variation and Natural Selection:

**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.**
- **True.** Genetic variation allows populations to adapt to changing environments; advantageous traits can increase survival and reproduction.

### Question about Gene Flow and Genetic Variation:

**How does gene flow affect genetic variation?**
- **Response: Increases genetic variation within a population.**
- **True.** Gene flow introduces new alleles into a population, thereby increasing genetic diversity.

Overall, here are the summarized answers:
1. **0% chance that the child will have MOGS-CDG.**
2. **It provides an increased likelihood that advantageous traits will be passed to the next generation.**
3. **Increases genetic variation within a population.**

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