Question

If T stands for tall pea plant and t stands for short pea plant, what is the phenotype of a pea plant with allele combinations Tt, TT and tt. You should have an answer for each combination.

Answer 1

Answer:Tt have thever photype tall.TT have the phenotype tall also.tt have the phenotype small.

Explanation:T will cover the expression of t ,because it's dominant and t is resecive.

Answer 2

Answer: Tt will be tall phenotypically, TT will be tall phenotypically, tt will be short phenotypically.

Explanation: From the information provided above, T stands for tall pea plant. This indicates that T is dominant because dominant alleles are written in upper cases. t stands for short pea plant. This indicates that t is recessive because recessive alleles are usually written in lower cases.

A dominant allele has the ability to express itself in the presence of a recessive allele, it masks the effect of a recessive allele. A dominant allele will express itself both in a homozygous and heterozygous state. A recessive allele do not have the ability to express itself in the presence of a dominant allele, its effect is masked by a dominant allele. A recessive allele can only express itself in a homozygous state.

Therefore, T will express itself as tall pea plant both in Tt and TT while t will express itself as short pea plant in tt.