Question

Complete this Punnett Square.(4 points)

Drop target 1AA
Drop target 2Aa
Drop target 3Aa
Drop target 4aa
AAAaaa
Question 2
Assuming that the gene on your Punnett square follows the mendelian inheritance pattern of complete dominance. What is the phenotypic ratio for the square you completed?(1 point)
Responses

1:1
1:1

2:1
2:1

3:1
3:1

4:1

Answer 1

To complete the Punnett Square for the genotypes you've provided (AA, Aa, Aa, aa), let's set it up:

```
A A
-----------------
A | AA AA |
-----------------
a | Aa Aa |
-----------------
a | aa aa |
```

The completed Punnett Square shows the following genotypes:

- 2 AA
- 2 Aa
- 1 aa

Now let's list the genotypes again to interpret their phenotypes assuming that "A" (dominant) expresses a dominant trait and "a" (recessive) expresses a recessive trait:

- AA → dominant phenotype
- Aa → dominant phenotype
- aa → recessive phenotype

From the completed Punnett Square:

- **Dominant phenotypes (AA + Aa)**: 4
- **Recessive phenotypes (aa)**: 1

Therefore, the phenotypic ratio is:

- **Dominant:Recessive** = 4:1

So, the answer to the second question is:

**4:1**