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NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice

Which of the following structures will be seen in metaphase-I of meiosis-I, in a plant cell that has 64 chromosomes?

Options

  1. A16 bivalents
  2. B16 dyad
  3. C32 bivalents
  4. D32 dyad

Correct answer

C. 32 bivalents

Step-by-step solution

The complex formed by a pair of synapsed homologous chromosomes is called a bivalent or a tetrad. So if the total number of chromosomes is '2n', then the number of the bivalents will be half, i.e., 'n'. Hence, a plant cell having 64 chromosomes, will have 32 bivalents in the stage of Metaphase-I of Meiosis-I.

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