# Assertion: Prophase is the first stage of mitosis which follows S and G_(1) phases of interphase. Reason: Prophase is marked by the intiation of clu

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Assertion: Prophase is the first stage of mitosis which follows S and G_(1) phases of interphase.
Reason: Prophase is marked by the intiation of clusters of chromocomes.
A. If both assertion and reason are true and reason is the correct explantion of assertion
B. If both assertion and reason are true but reason is not the correct explnantion of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

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Prophase which is the first stage of mitosis follows the S and G_(2) phases of interphase. In the S and G_(2) phases the new DNA molecuels formed are not distinct but interwined. Prophase is marked by the initiation of condensation of chromosomal material. The chromosomal material becomes untangled during the process of chromatin condensation.