Assertion: Small disc-shaped structures at the surface of the centromeres are called kinetochores. Reason: Kinetochores serve as the sites of attachment of spindle fibres to the centromeres.
Choose Your Option
A. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
C. Assertion is true but Reason is false.
D. Both Assertion and Reason are false.