How are the plant height genotypes TT and Tt similar?(1 point)
Responses
Both are examples of homozygous genotypes.
Both are examples of homozygous genotypes.
Both are expressed as a tall phenotype.
Both are expressed as a tall phenotype.
Both are expressed as a short phenotype.
Both are expressed as a short phenotype.
Both are examples of heterozygous genotypes.
Both are examples of heterozygous genotypes.
Both are examples of homozygous genotypes.
To determine how the plant height genotypes TT and Tt are similar, we need to understand the concept of genotypes and how they relate to plant height.
Genotypes refer to the genetic makeup of an organism, specifically the alleles it possesses for a particular trait. In this case, the trait is plant height, and the alleles involved are represented by the letters T and t.
The genotype TT indicates that both alleles for plant height are the same, in this case, both are tall alleles. This is called a homozygous genotype because the organism has two identical alleles for the trait.
The genotype Tt, on the other hand, indicates that the organism has one tall allele and one short allele. This is called a heterozygous genotype because the organism has two different alleles for the trait.
So, to answer the question, the similarity between the genotypes TT and Tt is that both of them have at least one tall allele (T) and can potentially express the tall phenotype. Both genotypes can result in tall plants, although TT would yield purely tall plants, while Tt would have a 50% chance of producing tall plants (when the T allele is dominant) and a 50% chance of producing short plants (when the t allele is recessive).
Therefore, the response "Both are expressed as a tall phenotype" is the correct answer.