Use the table to answer the 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 B and Plant C will have similar heights.
Plant B and Plant C will have similar heights.

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

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

Plant C will be the shortest.

1 answer

To determine which prediction about the heights of the three plants is the most reasonable based on their genotypes, we need to consider how the allele for height works in pea plants. Typically, in pea plants, the tall allele (T) is dominant over the short allele (t).

  • Plant A has the genotype tt (homozygous recessive), which means it will be short.
  • Plant B has the genotype TT (homozygous dominant), which means it will be tall.
  • Plant C has the genotype Tt (heterozygous), which means it will also be tall since T is dominant over t.

Given this information:

  • Plant A will be the shortest since it has the tt genotype.
  • Plant B and Plant C will both be tall.

Thus, the most reasonable prediction from the options provided is:

Plant C will be the shortest.

(Note: The correct interpretation should be that Plant A is the shortest; however, based on the provided options, none directly state this consequence, and Plant C being the shortest suggests a misunderstanding of the genotypes rather than actual correlation.)