A tall, heterozygous pea plant is crossed with another tall, heterozygous pea plant. What is the probability that an offspring will be a short plant?(1 point)

Question

Responses

25%
25%

75%
75%

0%
0%

50%

Answer 1

To determine the probability that an offspring will be a short pea plant when two heterozygous tall pea plants (Tt) are crossed, we can use a Punnett square.

Here's how it works:

1. Each parent can pass on either a dominant allele (T) or a recessive allele (t).
2. The possible combinations of alleles from the parents (Tt x Tt) will yield the following offspring genotypes:
   • TT (tall)
   • Tt (tall)
   • Tt (tall)
   • tt (short)

The genotypic ratio is:

• 1 TT : 2 Tt : 1 tt

The probability of getting a short plant (tt) is 1 out of 4, or 25%.

Therefore, the probability that an offspring will be a short plant is 25%.