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)
Responses
0%
0%
50%
50%
75%
75%
25%
25%
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%.