Match the items of column I with column II

	Column I		Column II
(a)	XX - XO method of sex determination	(i)	Turner's syndrome
(b)	XX - XY method of sex determination	(ii)	Female heterogametic
(c)	Karyotype 45	(iii)	Grasshopper
(d)	ZW - ZZ method of sex determination	(iv)	Female homogametic

Select the correct option from the following :

	a	b	c	d
1	ii	iv	i	iii
2	i	iv	ii	iii
3	iii	iv	i	ii
4	iv	ii	i	iii

A-III, B-IV, C-I, D-II

A. XX-X0 method of sex determination is observed in grasshoppers. The female has two X chromosomes while the male has a single X chromosome.

B. In XX-XY method of sex determination, the female (XX) is homogametic while the male is heterogametic (XY). 

C. A woman with Turner’s syndrome has 45 chromosomes with only a single X chromosome.

D. In ZW-ZZ method of sex determination, the female (ZW) is heterogametic while the male (ZZ) is homogametic.