(E) The sperm head contains an elongated haploid nucleus, the anterior portion of which is covered by a cap-like structure acrosome.

(F) The human male ejaculates about 300-400 million sperms during a coitus of which, for normal fertility, at least 60% sperms must have normal shape and size and at least 40% of them must show vigorous motility.

(G) The seminal plasma along with the sperms constitute semen.

(H) The process of formation of a mature female gamete is called oogenesis.

(I) Oogonia cells start division and gets temporarily arrested at metaphase-1 stage of meiotic division and are called primary oocytes.

(J) At puberty, 60000-80000 primary follicles are left in each ovary in female.

(K) The primary follicles get surrounded by more layers of granulosa cells and a new theca and are called secondary follicles.

(L) During oogenesis, the secondary follicle is characterized by a fluid filled cavity called antrum.

(M) During oogenesis, the secondary oocyte forms a new membrane called zona pellucida surrounding it. After this, Graafian follicle ruptures to release secondary oocyte from ovary by the process called ovulation.

Choose the correct option given below: