Fertilization - development biology, Biology

Assignment Help:

Fertilization - Development Biology

Previously you knew the process which leads to the differentiation of the male and female germ cells, the sperm and ova, respectively. In this section we shall describe the process by which the sperm and the egg unite to form a zygote. This process is known as fertilization. Fertilization results in

  1. The restoration of the diploid chromosomal number in the nucleus, and
  2. The activation of the development.

Activation would essentially mean that a sequence of metabolic and morphological changes are triggered that in turn cause the division of a unicellular zygote into a multicellular organism. Mostly we will describe the fertilization in mammals with occasional references to sea urchins. It is true that depending upon the habitat as well as the life styles there may be variations in the fertilization process in diverse organisms. But generally the events of fertilization are more or less similar in many different organisms. Prior to the actual fusion of the sperm and the egg nuclei, the germ cells prepare themselves for the fertilization process.


Related Discussions:- Fertilization - development biology

Questions, assignment having 12 questions

assignment having 12 questions

Regulation of coronary blood flow, Q. Can you define Regulation of Coronary...

Q. Can you define Regulation of Coronary Blood flow? During diastole when the aortic valve (AV) is closed, aortic diastolic pressure is transmitted through the dilated sinuses

Define the vitamin and minerals required for elderly, Define the Vitamin an...

Define the Vitamin and Minerals required for elderly? Decreased gastric secretion and intestinal motility affect the absorption and intake of nutrients especially calcium, iron

Working of serotonergic cell bodies, Q. Working of serotonergic cell bodies...

Q. Working of serotonergic cell bodies? The major site of serotonergic cell bodies is in upper pons and the midbrain, specifically the median and dorsal raphe nuclei and to a l

Explain galactosemia, Galactosemia Inability  of conversion of galactos...

Galactosemia Inability  of conversion of galactose  to glucose results in the accumulation of galactose in  the  blood  -  known  as galactosemia. The biochemical defect usuall

Define about the population dynamics, Define about the Population Dynamics?...

Define about the Population Dynamics? In this unit, we are going to study about human population who eventually suffer from these problems. Why do we want to study about human

Explain procedure for temporary mounts of fungal culture, Explain Procedure...

Explain Procedure for Temporary Mounts of Fungal Culture? (1) Observe mould culture for the colonial appearance and colour. Also observe the underside. (2) Label the clean,

Foetal maceration and mummification, Foetal maceration and mummification ...

Foetal maceration and mummification Foetal mummification occurs when the foetus dies in the uterus in the absence of air and bacterial contamination and the cervix remains tig

What is the significance of axial skeleton, What is the significance of Axi...

What is the significance of Axial skeleton? The bones which make up skeleton of the main body axis of vertebrates. It comprise the cranium, vertebral column, and rib cages, How

Briefly explain lichens organism, Briefly explain Lichens organism? Lic...

Briefly explain Lichens organism? Lichens are unique organisms consisting of a symbiotic relationship between a fungus and a photosynthetic organism. They represent a type of s

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd