To make a prediction about the heights of the three pea plants based on their genotypes, we need to consider which genotypes correspond to tall and short phenotypes.
In pea plants, the allele for tallness (T) is typically dominant over the allele for shortness (t). Therefore, we can generally predict plant heights based on the genotypes as follows:
- Genotype TT (homozygous dominant) will produce tall plants.
- Genotype Tt (heterozygous) will also produce tall plants.
- Genotype tt (homozygous recessive) will produce short plants.
Without knowing the specific genotypes of Plants A, B, and C, if we assume:
- Plant A has a genotype of TT or Tt (tall)
- Plant B has either TT or Tt (tall or possibly the same as A)
- Plant C has genotype tt (short)
Based on this reasoning, if Plant C is indeed tt, it makes sense to conclude that Plant C will be the shortest because it carries two recessive alleles.
Thus, the most reasonable prediction is:
Plant C will be the shortest.