25. Assertion : Meiotic division results in the production of haploid cells. Reason : Synapsis occurs during zygotene of meiosis.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion

(b)       If both the assertion and reason are true but the reason is not a correct explanation of the assertion 

(c)        If the assertion is true but the reason is false

(d)       If both the assertion and reason are false

(e)       If the assertion is false but reason is true

Ans. (a)           Diploid cell produce haploid cell by meiosis. It occurs due to synapsis. A chromosome has two chromatids, hence a bivalent has 4 chromatids.

(10)