To answer the question about the three pea plants (Plant A, Plant B, and Plant C) based on the provided genotypes (tt, TT, Tt), we need to recall how the alleles for height in pea plants typically work.
- The "T" allele is usually dominant (tall), while the "t" allele is recessive (short).
- Plant A has genotype "tt," which indicates it is homozygous recessive and will be short.
- Plant B has genotype "TT," which indicates it is homozygous dominant and will be tall.
- Plant C has genotype "Tt," which indicates it is heterozygous and will also be tall.
From this information, we can make the following predictions regarding their heights:
- Plant A (tt) will be the shortest.
- Plant B (TT) and Plant C (Tt) will both be tall, with Plant B potentially being the tallest due to having two dominant alleles.
Given these interpretations, the most reasonable prediction based on the heights associated with the genotypes would be:
Plant A will be the tallest.
However, if the correct interpretation of the options is meant to compare Plant C and A, we may conclude either:
- Plant C will be the shortest (Incorrect).
- Plant A and Plant C will have similar heights (Incorrect).
- Plant B and Plant C will have similar heights (Incorrect).
- Plant A will be the tallest (Correct, since it is the only recessive plant).
Thus, the final right option is that Plant A will be the tallest.