Question

jose is practicing punnett squares. based on this sample, which box did he not fill out correctly?
options: a.
b.
c.
d.

Explanation:

In a Punnett square, the alleles from one parent are placed on the top (e.g., \(D\) and \(d\) in the first row of the square) and the alleles from the other parent are placed on the left - hand side (e.g., \(D\) and \(d\) in the first column). When filling the boxes, we combine the alleles from the top and the left. For the top - left box: combining \(D\) (from the top) and \(D\) (from the left) gives \(DD\). For the top - right box: combining \(d\) (from the top) and \(D\) (from the left) gives \(Dd\). For the bottom - left box: combining \(D\) (from the top) and \(d\) (from the left) gives \(Dd\). For the bottom - right box: combining \(d\) (from the top) and \(d\) (from the left) gives \(dd\). The box labeled \(c\) has \(DD\) which is correct. The box labeled \(d\) has \(dd\) which is correct. The box labeled \(a\) should be \(Dd\) (not \(DD\)), and the box labeled \(b\) has \(Dd\) which is correct.

Answer:

a.