MHT CET Medical202621 April 2026Evening ShiftBiologyPrinciples of Inheritance and VariationActual
Match List I with List II List I (Gene interaction) List II (Examples) (A). Holandric genes (I). Multiple effects of a single gene (B). Pleiotropy (II). Hypertrichosis (C). Multiple alleles (III). ABO blood types Choose the correct answer from the options given below:
Options
- A(A) - (I), (B) - (III), (C) - (II)
- B(A) - (I), (B) - (II), (C) - (III)
- C(A) - (III), (B) - (I), (C) - (II)
- D(A) - (II), (B) - (I), (C) - (III)
Correct answer
D. (A) - (II), (B) - (I), (C) - (III)
Step-by-step solution
Holandric genes are genes located on the Y chromosome and are transmitted directly from father to son. Hypertrichosis (excessive hair on the ear pinna) is a classic example of a holandric trait. Thus, (A) matches with (II). Pleiotropy is the phenomenon where a single gene exhibits multiple phenotypic expressions or effects. Thus, (B) matches with (I). Multiple alleles refer to the existence of more than two alternative forms of a gene in a population. The ABO blood group system in humans is a well-known example, go