Assertion (A). In Spirogyra, some cells in one of the two filaments become empty after conjugation.
Reason (R ). The aplanogametes from the cells of the filaments pass through conjugation tubes into the cells of the other filaments.
A. Both A and R are true and R is correct explanantion of A
B. Both A and R are true and R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true.
