Choose the correct option for human reproduction.

Choose the correct option regarding the statements provided:
$(1)$ The process of fusion of a sperm with an ovum is called fertilization.
$(2)$ $LH$ surge induces the rupture of the Graafian follicle.
$(3)$ An $8$-celled embryo is called a morula.
$(4)$ The length of the fallopian tube is $8-10 \, cm$.

In the $Freemartin$ condition,which of the following is true?

Select the incorrect statement.

Given below are two statements:
Statement $I$: Ovulation is caused by $LH$ surge leading to rupture of Graafian follicles.
Statement $II$: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:

An egg with yolk in the center and cytoplasm surrounding it is known as: