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  • In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are  (i) large chromosome  (ii) small chromosome  (iii) Y-chromosome  (iv) X-chromosome  (a) (i) and (ii) (b) (iii) only  (c) (iii) and (iv)

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

Answers (1)

  • Humans have two sex chromosomes, X and Y.
  • In females, two X chromosomes are present, making it a perfect pair.
  • But in males, one is a normal-sized X-chromosome while the other is a short Y-chromosome.

Therefore, option (c) is correct.

Posted by

infoexpert26

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