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NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice

How many of the given statements are incorrect? A . Nucleolus and nuclear membrane disappear in prophase. B . Synaptonemal complex formation occurs during zygotene. C . The enzyme responsible for crossing over in pachytene is recombinase. D . Chiasmata formation occurs in diakinesis.

Options

  1. AOne
  2. BTwo
  3. CThree
  4. DFour

Correct answer

A. One

Step-by-step solution

Nucleolus and nuclear membrane disappear during prophase and reappears during telophase of cell division. Synaptonemal complex is a protein network that holds two chromosomes of a bivalent formed during synapsis in the zygotene of prophase I of meiosis. Chiasmata formation arises during diplotene stage

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