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Question
In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are
- large chromosome
- small chromosome
- Y-chromosome
- X-chromosome
Options
(i) and (ii)
(iii) only
(iii) and (iv)
(ii) and (iv)
Solution
(iii) and (iv)
Explanation -
Human males have 22 pairs of autosomes and one mismatched pair of sex chromosomes- one normal-sized X chromosome and the other short Y chromosomes.
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