Question

in garden peas, the allele for tall plants (t) is dominant over the allele for dwarf plants (t). a true - breeding tall plant is bred with a true - breeding dwarf plant to produce heterozygous tall plants. these f1 heterozygotes then self - fertilize to yield f2 offspring. complete the punnett square for this monohybrid cross with the appropriate genotype of the f1 gametes and the f2 genotype/phenotype combination. male gametes a t female gametes t b tt tall c d e

Explanation:

Step1: Determine F1 gametes

The F1 heterozygotes have genotype Tt. They will produce two types of gametes: T and t. Male gametes are T and t, and female gametes are also T and t. So, A = T.

Step2: Fill in Punnett - square

When we cross the male and female gametes, when a female T gamete combines with a male T gamete (B), the genotype is TT and the phenotype is tall. When a female t gamete combines with a male T gamete, we get Tt (already shown). When a female T gamete combines with a male t gamete, we also get Tt. When a female t gamete combines with a male t gamete (E), the genotype is tt and the phenotype is dwarf. C = t, D = Tt (tall), E = tt (dwarf).

Answer:

A. T
B. TT (Tall)
C. t
D. Tt (Tall)
E. tt (Dwarf)