Question

Some important events that take place during fertilisation are given below. Arrange the events in a proper sequence and select the correct option.
(i) Cortical reaction
(ii) Sperm entry
(iii) Karyogamy
(iv) Acrosomal reaction

• A. $(iv)\to (i)\to (ii)\to (iii)$
• B. $(i)\to (ii)\to (iii)\to (iv)$
• C. $(iv)\to (ii)\to (i)\to (iii)$
• D. $(ii)\to (i)\to (iii)\to (iv)$

Answer 1

Answer: (A)

Correct answer is (a) $(iv)\to (i)\to (ii)\to (iii)$