Fertilization and Implantation
Fertilization and Implantation: Overview
This topic covers concepts such as Capacitation, Cortical Reaction, Implantation, Fertilization in Humans, Monospermy, Polyspermy, Insemination, Zygote Formation in Human, Antifertilizin, Amphimixis, and Fertilizin.
Important Questions on Fertilization and Implantation
Which part of spermatozoa will go inside of ovum after fertilization?

Amphimixis is development of an organism obtained through?

Fertilizin's are emitted by _____ egg.

Fertilizin is produced by?

The process of _____ (insemination/implantation) takes place during copulation in mammals.

Insemination occurs to bring about the fertilization event in female.


One probable cause of polyspermy is an abnormal zona pellucida.

Polyspermy is a predominant condition seen in humans.


Mention different causes of polyspermy.


In monospermy, one sperm fuses two ova one after another.

Monospermy helps in maintaining a constant chromosome number in each generation.

Which of the following is the significance of monospermy?



Rashmi gave birth to three girls. Her mother-in-law blamed her for giving birth to girls. However, as we know, ova (eggs) are only of one type containing 22+X chromosomes, but sperms are of two types: one type of sperms contain 22+X chromosomes and another type of sperms contain 22+Y chromosomes. When ovum and sperm with 22+Y chromosomes are fused, a male child is formed and when ovum and sperm with 22+X chromosomes are fused, a girl child is produced.
Read the above passage and answer the following question:
In your opinion, who is responsible for the female child (mother or father)?

The metabolic activity (s) that takes place after the entry of sperms into the ovum are/is

A process in which sperms are collected from a male and liberated into the female uterus or cervix is called _____. (Write the full name)
