Question

Give the genotype and phenotype of the plants of F₁ generation. Mention the possible combinations of the gametes that can be obtained from the F₁ hybrid plant. State the Mendel's law of independent assortment.

Answer 1

For the standard cross RRYY × rryy, F₁ plants are RrYy and have round, yellow seeds. Each F₁ plant produces RY, Ry, rY and ry gametes. The law of independent assortment states that, during gamete formation, the alleles of one gene pair assort independently of those of another pair, provided the genes assort independently.