Use the table to answer the question.

Question

Plant A Plant B Plant C
tt TT Tt
The table shows the genotypes of three pea plants for the allele for height. Which prediction about the three plants is the most reasonable?

(1 point)
Responses

Plant A will be the tallest.
Plant A will be the tallest.

Plant C will be the shortest.
Plant C will be the shortest.

Plant B and Plant C will have similar heights.
Plant B and Plant C will have similar heights.

Plant A and Plant C will have similar heights. .

Answer 1

To determine the most reasonable prediction about the heights of the three plants based on their genotypes, we can analyze the alleles for height:

• Plant A: tt (homozygous recessive, typically short)
• Plant B: TT (homozygous dominant, typically tall)
• Plant C: Tt (heterozygous, typically tall, like TT)

Given that:

• The dominant allele (T) typically results in tall plants, and the recessive allele (t) results in short plants.

From this information, we can predict:

• Plant A (tt) will be the shortest.
• Plant B (TT) will be the tallest.
• Plant C (Tt) will be tall but possibly not as tall as Plant B.

Therefore, the most reasonable prediction is:

Plant B and Plant C will have similar heights.

This is because both have the dominant allele T, and both are expected to grow taller than Plant A. However, Plant B being homozygous would generally be taller than Plant C, which is heterozygous.