Question

Fertilization membrane is formed to
A) Facilitate entry of sperm into egg
B) Provide stability to egg
C) Prevent monospermy
D) Prevent polyspermy

Answer 1

Human fertilization is a combination of human egg and sperm that occurs in the fallopian tube ampulla. The result of this union is the production of a zygote cell, or fertilized egg, which initiates prenatal development. Scientists discovered the dynamics of human fertility in the nineteenth century.

Complete answer:
Fertilization is a fusion of haploid gametes, eggs and sperm to form a diploid zygote. Note that although there may be subtle differences in the process of fertilization that occur naturally within the body or through reproductive technologies outside the body, the overall product in both cases is diploid zygote. In human fertility research, the mouse is the most studied species followed by domestic and farm animals. The fertilization process involves components of and signaling between sperm (sperm) and egg (oocyte).

Fertilization occurs when the sperm fuses with the female act during the intercourse and forms an egg that is implanted in the uterus of the female. The sperm travels through the fallopian tube and penetrates the zona pellucida layer of the ovum (female egg) and fuses the zygote into it (fertilized egg).
Fertilization membrane is a resistant membrane layer in the eggs of many animals which forms the following fertilization by thickening and separating the mucosa membrane from the cell surface and which prevents multiple fertilization or polyspermia.

Thus the correct answer is option ‘D’.

Note: In addition to in vivo fertilization, there are many new in vitro technologies related to human infertility (Assisted Reproductive Technology) and somatic cell transfer (SCNT) animal production to generate zygote.