Question

How are the plant height genotypes TT and Tt similar?
Both are expressed as a short phenotype.
Both are expressed as a tall phenotype.
Both are examples of heterozygous genotypes.
Both are examples of homozygous genotypes.

Answer 1

Both TT and Tt genotypes are similar in that they are both examples of homozygous genotypes, where the plants have either two dominant alleles (TT) or two recessive alleles (tt) for the gene controlling plant height.