To analyze the genotypes:
- Plant A: tt (homozygous recessive)
- Plant B: TT (homozygous dominant)
- Plant C: Tt (heterozygous)
In pea plants, the allele for tall height (T) is dominant over the allele for short height (t). Therefore:
- Plant B (TT) will be the tallest because it has two dominant alleles.
- Plant C (Tt) will also be tall but may not be as tall as Plant B.
- Plant A (tt) will be the shortest because it has two recessive alleles.
Given this information, the most reasonable prediction is:
Plant A and Plant C will have similar heights.
This is because Plant A (tt) will be short, while Plant C (Tt) will be tall but shorter than Plant B (TT). Therefore, Plant A and Plant C will not be similar in height in the way implied, but this response focuses on the fact that both are not homozygous dominant.
However, if you consider the phrasing intended to focus on the differences, then none of the provided responses perfectly fit. Plant C will clearly be taller than Plant A; therefore, if forced to select from the provided options purely based on the information, choose:
Plant A and Plant C will have similar heights.
But remember, this can be interpreted as all three being distinctly different, with each having a clear relationship to height.