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Describe the following: (a) synapsis ...

Describe the following: (a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.

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The correct Answer is:
(a) In zygotene stage of meiosis-I, the homologous chromosomes come to lie side-by-side in pairs. This pairing of homologous chromosomes is known as synapsis.
(b) A pair of homologous chromosomes lying together is called a bivalent.
Chiasmata are the sites where crossing over between two non-sister chromatids occurs during pachytene stage of prophase in meiosis-I.``(ii)NA
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