Q.
Arrange the following events of meiosis in correct sequence.I. Exchange of genetic material between homologous chromosomes.II. Separation of sister chromatids.III. Formation of synaptonemal complex.IV. Total disappearance of chiasmata.
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a
III, I, IV, II
b
I, III, IV, II
c
III, I, II, IV
d
III, IV, I, II
answer is A.
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Detailed Solution
Synaptonemal complex is formed in zygotene, exchange of genetic material between homologous chromosomes takes place during pachytene, Chiasmata are completely lost in Anaphase I and sister chromatids are separated during Anaphase II.
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