A tall, heterozygous pea plant is cross-pollinated with another tall, heterozygous pea plant. Use a Punnett square to determine the probability that the offspring is a tall, homozygous pea plant.(1 point)

Question

Responses

0%
0%

50%
50%

75%
75%

25%
25%

Answer 1

The correct answer is 25%.

To determine the probability of the offspring being a tall, homozygous pea plant, we need to consider the possible combinations of alleles from the parent plants.

In this case, the tall, heterozygous pea plant can have the genotype Tt, where T represents the tall allele and t represents the short allele. The other tall, heterozygous pea plant also has the genotype Tt.

When we create a Punnett square to combine the possible alleles from both parents, we get the following:

T t
T TT Tt
t Tt tt

There are four possible combinations, and only one of them (TT) represents a tall, homozygous pea plant.

Therefore, the probability of the offspring being a tall, homozygous pea plant is 1 out of 4, or 25%.