Question

Which of the following phenomena is a consequence of Independent Assortment? 1. Pure breeding plants, when mated with each other, produce completely homozygous offspring. 2. For any gene displaying complete dominance, heterozygous individuals exhibit the dominant phenotype. 2. Smooth seed trait is dominant to wrinkled seed trait in peas. 4. The phenotypic ratio among phenotypes produced from an F1 X F1 dihybrid cross is 9:3:3:1.

Answer 1

Answer: The answer is that the phenotypic ratio among phenotypes produced from an F1 X F1 dihybrid cross is 9:3:3:1.

Explanation:

Independent assortment of genes explains how alleles on different chromosomes arrange independently of one another during gamete formation.

So, a dihybrid cross involving TWO characters (e.g Seed color & seed shape) would have its respective alleles DISTRIBUTED whether dominant or recessive, for crossing to occur and yield varying proportion of offspring in the well spread ratio of 9:3:3:1; making it a consequence of independent assortment of genes