Meiosis, Biology

Assignment Help:

Meiosis is the special type of cell division in which the numbers of chromosomes in daughter cell are reduced to half, as compared to parent cell.

Occurrence:

It takes place in diploid cells only.

• In animals at the time of gamete formation.

Gametes:

Eggs and Sperms cells are specialized sex cells called Gametes.

Zygote:

In animals male gamete (sperm) unites with female gamete (egg) during fertilization to form a single cell called zygote.
The fusion of gametes is called syngamy.Zygote is the first cell of the new animal. Each of the two gametes contributes half of the genetic information to the zygote.

Reduction Division:

The daughter cells resulting from meiosis will carry half the number of chromosomes and half the amount of genetic material compared to the parent cell. Hence, meiosis is also known as reductional division.

Meiosis occurs during the formation of gametes (spermatozoa and ova) in animals and spores in higher plants. It is mainly meant for bringing about a decrease in the chromosome number from the diploid (2n) condition to the haploid (n) condition.


Related Discussions:- Meiosis

Explain about probiotics and prebzotics, Explain about Probiotics and Prebz...

Explain about Probiotics and Prebzotics? We all have read or heard about probiotics and prebiotics at some point of time. However, what exactly do we mean by these terms? When

Pollution - environmental pollution, Pollution - Environmental Pollution ...

Pollution - Environmental Pollution Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and

Is fecundation in mammals internal or external, Is fecundation in mammals i...

Is fecundation in mammals internal or external? Fecundation in mammals is internal, with copulation. In the contemporary world human technology is able to endorse artificial e

Stereoisomers , Glyceraldehyde has a one asymmetric carbon atom the central...

Glyceraldehyde has a one asymmetric carbon atom the central one and so two stereoisomers  which is also known as optical isomers are possible, which is two forms of glyceraldehyde,

What is the concept of universality of the genetic code, What is the concep...

What is the concept of universality of the genetic code? What are the exceptions to this universality? The genetic code is universal because the rules of protein codification b

Echinoderms, simplest way to learn their classifiction

simplest way to learn their classifiction

Explain three basic sexual life cycles studied in biology, What are the thr...

What are the three basic sexual life cycles studied in Biology? Which of them corresponds to metagenesis? Which of them is the human life cycle? Sexual reproduction may take pl

Is this refers to the mn and abo loci mentioned in class, This problem refe...

This problem refers to the MN and ABO loci mentioned in class. It also refers to the Rh locus, which is responsible for the positive/negative part of the blood type. The Rh+ allele

Define classification of proteins on the basis of attributes, Define Classi...

Define Classification of proteins on the basis of attributes? Besides classifying proteins on the basis of soluble and insoluble, proteins have been further classified based on

What are cd4 lymphocytes, What are CD4 lymphocytes? What is the relationshi...

What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate? CD4 lymphocytes are T helper lymphocytes that there in their plasma memb

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