Question

Match the columns and choose the correct option

	I		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-iv, b-iii, c-i, d-ii
• B. a-ii, b-i, c-iv, d-iii
• C. a-ii, b-iii, c-iv, d-i
• D. a-iv, b-i, c-ii, d-iii.

Answer 1

The correct option is C a-ii, b-iii, c-iv, d-i

a)Dominance – In a heterozygous organism only one allele express itself

b)Codominance – in a heterozygous organism both alleles express themselves fully

c)Pleiotrophy – A single gene influences many characters.

d)Polygenic inheritance – Many genes govern a single character.

So, the correct option is ‘a-ii b-iii c-iv d-I’.