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
50%
50%
75%
75%
25%
25%
0%
0%
To determine the probability of getting a tall, homozygous pea plant offspring from the cross between two tall, heterozygous pea plants, we can use a Punnett square.
First, let's assign letters to represent the genotypes for the parents. Let "T" represent the dominant allele for tallness, and "t" represent the recessive allele for shortness. Since both parent plants are heterozygous, their genotypes would be Tt.
We can now create a Punnett square by crossing the alleles from each parent:
| T | t |
-----------------
T | TT | Tt |
t | Tt | tt |
The Punnett square shows the possible combinations of alleles that the offspring can inherit.
From the Punnett square, we can see that there are four possible genotypes: TT, Tt, Tt, and tt. Out of these four possibilities, only one genotype (TT) corresponds to a tall, homozygous pea plant.
Therefore, the probability of getting a tall, homozygous pea plant offspring is 25%.