In the following, T is tall, t is short, Y is yellow seeds, and y is green seeds

Question

In the following, T is tall, t is short, Y is yellow seeds, and y is green seeds. The parent cross is a cross between a tall plant with yellow seeds and a short plant with green seeds, both true breeding.

A. What are the genotypes of the two parents?

B. What is the genotype of the F1 plant? Complete a Punnett square.

C. What are the possible gamete combinations of the F1 plant?

D. Complete a Punnett square of the dihybrid cross

E. What are the genotypic and phenotypic ratios for the F2 generation?

Explanation / Answer

Ans- a- genotype of tall and yellow TTYY and genotype of short and green is ttyy.

Ans-B- in crossing tall yellow with short green

Gametes- TY and ty

So the genotype of F1 will be TtYy.

Ans-C- the possible gamete combination of F1 plant may be- 1 )TY,

2) Ty,

3) tY,

4) ty

Ans-D- by taking above gamete combination we have

Ans-e -

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