Assertion: All copulations do not lead to the fertilisation and pregnancy.\ Reason : Fertilisation

Question

Assertion: All copulations do not lead to the fertilisation and pregnancy.\ Reason : Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampullaryisthmic junction.\

Professor PC Thomas Classes · Answer

(a) : Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary-isthmic junction and ovum is released only once a month. This is one of the reasons why all copulations do not lead to fertilisation and pregnancy.