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05/09/2020 6:29 pm
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During meiosis I, the chromosomes start pairing at
(a) Leptotene
(b) Zygotene
(c) Pachytene
(d) Diplotene
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05/09/2020 6:30 pm
(b) Zygotene
Explanation:
During zygotene, a substage of Prophase I of meiosis I, where chromosomes start pairing together is called synapsis. Such paired chromosomes are called as homologous chromosomes. A complex structure i.e., synaptonemal complex is formed by a pair of synapsed homologous chromosomes called a bivalent or a tetrad.