A. 25%
B. 50%
C. 75%
D. 100%

B. 50%

Explanation:

Heterozygous means that the offspring have two different alleles. Homozygous means there are are two of the same alleles.

In this Punnet Square, the offspring outcomes are:

BB, Bb, Bb and bb

BB and bb are homozygous: they have 2 of the same allele.

2 of the 4 are Bb.

Bb has two different alleles, one is the dominant allele of B( brown eyes) and the other is the recessive allele of b (blue eyes).

Therefore, there are 2 heterozygous outcomes out of the 4 outcomes. 2 out of 4 is equivalent to 1/2 or 50%. Thus, the correct answer is B. 50%

answer; i believe the correct answer is (replication is not conservative);

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )