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

Changes in animal life during xerosere, Changes in Animal Life during Xeros...

Changes in Animal Life during Xerosere Just like the hydrosere, there occur successive changes in animal life during the xerosere. A few mites are usually found associated wi

What is atraumatic needles, What is Atraumatic needles Atraumatic need...

What is Atraumatic needles Atraumatic needles with sutures comprise an eyeless needle attached to a specific length of suture thread. There are several shapes of surgical n

Which is an isotope of pgisphorous, The most abundant from of phosphorous h...

The most abundant from of phosphorous has 15 protos, 16 neutrons and 15 electrons. Which of the following is an isotope of pgisphorous? (make all correct choices) A. an atom wit

Explain skin changes during kwashiorkor, Explain Skin changes During Kwashi...

Explain Skin changes During Kwashiorkor? In many cases, dermatosis (changes in skin) is seen. Such changes are common in areas of friction. Dark pigmented patches, akin to sun-

Determine about the multicellular organisms, Another possible way to classi...

Another possible way to classify organisms would be to separate them into unicellular and multicellular organisms. Explain why this is not a useful classification system. Other

Agro industrial-enrichment of soil, Enrichment of soil Indirect provis...

Enrichment of soil Indirect provision of minerals to grazing livestock includes mineral fertilization of  pasture and altering soil pH, however this may not be always feasible

Induction in metamorphosis, Induction in Metamorphosis Some of the mo...

Induction in Metamorphosis Some of the morphogenetic changes throughout metamorphosis are found fo be quite independent of hormone action. For instance, generally during meta

Gas transportation systems in animals, Q. Oxygen comes from the environment...

Q. Oxygen comes from the environment and carbon dioxide in the end returns to the environment. How do small animals solve the problem of taking away and bringing these molecules fr

Microbiology, harmful and benificial microbes

harmful and benificial microbes

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