Which hormone helps in the journey of sperms towards the ampulla by causing contractions of the uterus and fallopian tube?

From which part of the ovum does the sperm enter?

Identify the correct statement regarding fertilization.

Ovum receives the sperm in the region of

Meroblastic cleavage refers to which type of division of egg?

$A$: Fertilizins are glycoproteins present on the surface of the egg membrane.
$R$: They help in the agglutination reaction by interacting with anti-fertilizins on the sperm surface to facilitate fertilization.