In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are

Question

(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome
(a) (i) and (ii) (b) (iii) only
(c) (iii) and (iv) (d) (ii) and (iv)

Answer 1

(c) (iii) and (iv)