How are the plant height genotypes TT and Tt similar?(1 point)
Responses
Both are examples of heterozygous genotypes.
Both are examples of heterozygous genotypes.
Both are examples of homozygous genotypes.
Both are examples of homozygous genotypes.
Both are expressed as a short phenotype.
Both are expressed as a short phenotype.
Both are expressed as a tall phenotype.
Both are expressed as a tall phenotype.
Both are expressed as a tall phenotype.
The correct answer is: Both are examples of heterozygous genotypes.
To understand why, we need to know a bit about genetics and inheritance patterns. In this case, we are talking about the genotypes of a certain trait that affects plant height, specifically the T gene. The T gene has two possible alleles: T (for tall) and t (for short).
A genotype refers to the genetic makeup of an individual, and includes the combination of alleles for a specific trait. In this case, TT and Tt are the two possible genotypes for plant height.
In a heterozygous genotype, the individual has two different alleles for the gene. So, the genotype Tt is heterozygous because it has one tall allele (T) and one short allele (t).
The genotype TT, on the other hand, is homozygous because it has two of the same alleles, both for tall height.
Therefore, both TT and Tt are examples of heterozygous genotypes because they have at least one short allele (t) present.