Question

Match the terms in Column-I with their description in Column-II and choose the correct option:

Column - I	Column - II
(a) Dominance	(i) Many genes govern a single character
(b) Codominance	(ii) In a heterozygous organism, only one allele expresses itself
(c) Pleiotropy	(iii) In a heterozygous organism, both alleles express themselves fully
(d) Polygenic inheritance	(iv) A single gene influences many characters

• A. a - ii; b - i; c - iv; d - iii
• B. a - ii; b - iii; c - iv; d - i
• C. a - iv; b - i; c - ii; d - iii
• D. a - iv; b - iii; c - i; d - ii

Answer 1

Answer: (B)

Dominance- In a heterozygous organism, only one allele expresses itself.
Codominance- In a heterozygous organism, both alleles express themselves equally.
Pleiotropy- A single gene influences many characters.
Polygenic Inheritance- Many genes govern a single character.