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NEET BIOLOGYMedium

Identify the correct sequence of events during Prophase I of meiosis: (a) Condensation of chromatin (b) Terminalisation of chiasmata (c) Synapsis of homologous chromosomes (d) Crossing over (e) Dissolution of synaptonemal complex

A

(a), (b), (c), (d), (e)

B

(b), (c), (d), (e), (a)

C

(b), (a), (c), (e), (d)

D

(a), (c), (d), (e), (b)

Step-by-Step Solution

the correct sequence of events in Prophase I is:

  1. Leptotene: Compaction/condensation of chromosomal material (a) .
  2. Zygotene: Pairing of homologous chromosomes called synapsis (c) .
  3. Pachytene: Crossing over occurs between non-sister chromatids (d) .
  4. Diplotene: Dissolution of the synaptonemal complex (e) .
  5. Diakinesis: Terminalisation of chiasmata (b) , . Therefore, the correct sequence is (a) →\rightarrow (c) →\rightarrow (d) →\rightarrow (e) →\rightarrow (b).
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