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 heterozygoes 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-(iii), c-(iv), d-(i)
• B. a-(iv), b-(i), c-(ii), d-(iii)
• C. a-(iv), b-(iii), c-(i), d-(ii)
• D. a-(ii), b-(i), c-(iv), d-(iii)

Answer 1

The correct option is A a-(ii), b-(iii), c-(iv), d-(i)

(a) Dominance - (ii) In a heterozygous organism only one allele expresses itself.

(b) Codominance - (iii) In a heterozygous organism both alleles express themselves fully

(c) Pleiotropy - (iv) A single gene influences many characters

(d) Polygenic inheritance - (i) Many genes govern a single character

So the correct option is 'a-(ii), b-(iii), c-(iv), d-(i)'.