Q7 of 31 Page 1

During a cytological study conducted on the chromosomes of the insects, it was observed that only 50% of the sperms had a specific structure after spermatogenesis. Name the structure and write its significance in sex determination of insects.

The specific structure is X-factor or X-chromosome. Female insects have XX sex chromosome whereas, males having only one sex chromosome XO. Hence, insect having one X-chromosome will be male and having XX-chromosomes will be females.



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