Question

Cells of corona radiata disperse just
A. After fertilization
B. Before fertilization
C. After cleavage
D. None of the above

Answer 1

Hint: Ovum is nothing but an egg. It is usually produced in women before birth, but is immature. It reaches the mature stage or ripened at the age of puberty. The innermost layer of the cells of the cumulus oophorus is the corona radiata and is adjacent to the ovum's inner defensive glycoprotein layer, the zona pellucida.

Complete answer: Corona Radiata is the innermost layer of oophorus granule cells and is immediately adjacent to the zona pellucida, which is an inner defensive layer of the ovum. The main function of this layer is to provide cells with proteins and it is produced by follicles that bind to the oocyte until it leaves the ovarian follicles and originates from the cells of squamous granulosa. In many species, its main function is to supply the cell with essential proteins. In many species, its main function is to supply the cell with essential proteins. At the site of fertilisation, the enzymes found in the acrosome of the sperm help the sperm to penetrate the ovum. The hyaluronidase enzyme helps to dissolve polymers of hyaluronic acid in the intercellular spaces that keep together the corona radiata granulosa cells; the corona penetrating enzyme (that dissolves the corona radiata); and the acrosine (that dissolves the pellucid zone). After this process, fertilisation occurs.
So, the right answer is option B.

Note: Fertilization is the process of fusion of male and female gametes. The structure that is formed after fertilization is a zygote, which is a diploid cell. Fertilization occurs in the ampulla region of the female reproductive tract.