Question

Tall (D) is dominant to dwarf (d). Crossing a heterozygous tall with a homozygous dwarf will result in the offspring having the following geneotype (s) and phenotypes (s)

Answer 1

When a heterozygous tall plant is crossed with a homozygous dwarf plant, the offspring will have a genotypic ratio of 1:1 and a phenotypic ratio of 1:1.

Step-by-step explanation:

In genetics, the dominant allele is represented by an uppercase letter (D for tall) and the recessive allele by a lowercase letter (d for dwarf). When a heterozygous tall plant (Dd) is crossed with a homozygous dwarf plant (dd), the possible genotypes of the offspring are Dd and dd. The phenotypes of the offspring will be tall for the Dd genotype and dwarf for the dd genotype.

The genotypic ratio of the offspring will be 1:1, since half of the offspring will have the genotype Dd and the other half will have the genotype dd. The phenotypic ratio will also be 1:1 since half of the offspring will be tall and the other half will be dwarf.