Define Fertilization In Biology. In angiosperms, fertilization results in two structures, namely, zygote and endosperm, hence the name “double fertilization.” double fertilization is a complex process where out of two sperm cells, one fuses with the egg cell and the other fuses with two polar nuclei which result in a diploid (2n) zygote and a triploid (3n) primary endosperm nucleus (pen) respectively. Fertilization is defined as fusion of male and female gametes.

The sex and other biologic traits of the new individual are determined by the combined genes and chromosomes that exist in the sperm and oocyte. In this online lecture, sir usama qamar explains 10th class biology chapter 14 reproduction. Fertilization, simply, is the joining of an egg and a sperm.

In Vitro Fertilization Definition. The term in vitro means in glass or in artificial conditions, and ivf refers to the fact that fertilization of egg by sperm had occurred not in uterus but out side the uterus at artificially maintained optimum condition. Fertilization by mixing sperm with eggs surgically removed from an ovary followed by uterine implantation of one or more of the resulting fertilized eggs —abbreviation ivf.

In vitro fertilization synonyms, in vitro fertilization pronunciation, in vitro fertilization translation, english dictionary definition of in vitro fertilization. A woman may be given fertility drugs before this procedure so that several eggs mature in the ovaries at the same time. The term in vitro means in glass or in artificial conditions, and ivf refers to the fact that fertilization of egg by sperm had occurred not in uterus but out side the uterus at artificially maintained optimum condition.