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NEET2026BiologyChapterActual

Which of the following is an incorrect match regarding the stages of Prophase I and their characteristic events?

Options

  1. AZygotene – Pairing of homologous chromosomes
  2. BPachytene – Appearance of recombination nodules
  3. CDiplotene – Terminalisation of chiasmata
  4. DDiakinesis – Breakdown of the nuclear envelope

Correct answer

C. Diplotene – Terminalisation of chiasmata

Step-by-step solution

Prophase I of meiosis is divided into five phases: Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis. During Zygotene, homologous chromosomes start pairing together, a process called synapsis. During Pachytene, crossing over occurs between non-sister chromatids of homologous chromosomes, which is characterised by the appearance of recombination nodules. During Diplotene, the synaptonemal complex dissolves and the recombined homologous chromosomes separate from each other except at the sites of crossovers, f

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