Question

Which law explains the expression of the dominant phenotype in the F1 progeny?

(a) Law of Recessivity

(b) Law of Dominance

(c) Law of Segregation

(d) Law of Independent Assortment

The question was posed to me during an interview.

My doubt is from Inheritance Principles in section Principles of Inheritance and Variation of Biology – Class 12

Answer 1

Correct answer is (b) Law of Dominance

To explain I would say: The first law of Mendel, also known as the law of dominance, explains the outcome of a monohybrid cross. It explains the reason for all progeny to have dominant phenotype as all progeny contain one copy of each allele obtained from parents, one of which is dominant over the other.