In pea plants, two stem lengths are possible: tall (T) and dwarf (t). Tall is dominant to dwarf. a. In a purebred tall plant, what gametes are possible? b. In a purebred dwarf plant, what gametes are possible? c. What is the genotype of a purebred tall plant? d. What is the genotype of a purebred dwarf plant?

a. only T gametes

b. only t gametes

c. TT

d. tt

Explanation:

This question involves a single gene coding for stem length in pea plant. The allele for tall stem length (T) is dominant to dwarf stem length (t).

- A purebred is an organism that will only transfer one type of phenotype to its offspring or produce only one type of GAMETE. Hence, to do this, a purebred must have a homzygous genotype. According to this question;

a. A purebred tall plant (TT) will produce only 'T' gametes.

b. A purebred dwarf plant (tt) will produce only 't' gametes.

c. The genotype of a purebred tall plant will be 'TT'

d. The genotype of a purebred dwarf plant will be 'tt'

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.