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NEET 2024, Biology Q27: Cell Cycle and Cell Division

NEET2024Biology
Q.

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

    Statement I is true but Statement II is false

  2. B

    Statement I is false but Statement II is true

  3. C

    Both Statement I and Statement II are true

  4. D

    Both Statement I and Statement II are false

Solution

During the leptotene stage of prophase I, chromosomes condense and gradually become visible under the light microscope (Statement I is correct). The onset of diplotene is marked by the dissolution of the synaptonemal complex, after which homologues separate except at chiasmata (Statement II is correct).

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