$A$ : In morula stage the cells divide without any increase in size.
$R$ : Zona pellucida remains intact till cleavage is completed.

  • A

    Assertion and Reason both are correct and  also correct explantion.

  • B

    Assertion and Reason both are correct but not explanation of assertion.

  • C

    Assertion is correct, but Reason is incorrect.

  • D

    Both Assertion and Reason are incorrect.

Similar Questions

Normally the number of chromosomes in the nuclei of gametes that fuse at fertilization are

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$(1)$ End of process of oogenesis

$(2)$ Induces the completion of the second meiotic division

$(3)$ The corpus luteum degenerates

$(4)$ Signals for maintain progesterone level in blood

$(5)$ Formation of zygote

In which stage is blastocoele formed

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