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NEET · Biology · STD 11 - 10. Cell cycle and cell division

Given below are two statements:
Statement \(I\): Chromosomes become gradually visible under light microscope during leptotene stage.
Statement \(II\) : The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements, choose the correct answer from the options given below:

  1. A Both Statement \(I\) and Statement \(II\) are false
  2. B Statement \(I\) is true but Statement \(II\) is false
  3. C Statement \(I\) is false but Statement \(II\) is true
  4. D Both Statement \(I\) and Statement \(II\) are true
Verified Solution

Answer & Solution

Correct Answer

(D) Both Statement \(I\) and Statement \(II\) are true

Step-by-step Solution

Detailed explanation

- During leptotene stage the chromosomes become gradually visible under the light microscope.
- The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and the tendency of the recombined homologous chromosomes of the bivalents to separate from each other except at the site of crossover.
Thus both statement \(I\) and \(II\) are correct.