Question

When two plants, both tall, were crossed, they produced some offspring that were dwarves. Assuming that the height of the plant is controlled by a single gene and the allele for the tall plant is dominant, what is the genotype of the parents?

Answer 1

When two plants both tall were crossed , they produced some offspring that were dwarfs .

Assuming that the height of the plant is controlled by a single gene and the allele for the tall plant is dominant, the genotype of the parents is TT . The ratio of the F2 generation will be 3:1 . the phenotype ratio for the same is TT: TT: tt = 1:2:1 . the F1generation will have all the plants tall only