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NEET2018BotanyCell Cycle and Cell DivisionActual

Assertion: Bivalents are formed during pachynema. Reason: Bivalent and tetrad conditions of chromosomes are two different conditions.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

Pairing of the homologous chromosomes occurs during pachynema. Each bivalent or tetrad chromosome pair is made up of actually four chromatids, two of each chromosome.

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