ZoologyStatement A: During cleavage, cells divide without increase in size.Statement B: Zona pellucida remains persistent up to blastocyst stage.

Statement A: During cleavage, cells divide without increase in size.
Statement B: Zona pellucida remains persistent up to blastocyst stage.

  1. A

    Both statement A and statement B are correct.

  2. B

    Both statement A and statement B are incorrect.

  3. C

    Statement A is correct but statement B is incorrect.

  4. D

    Statement B is correct but statement A is incorrect.

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    Solution:

    During cleavage, cell number increases but not the size. Zona pellucida persists till the time of implantation .

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