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

Show the anatomical evidence, Q. Show the Anatomical Evidence? Anatomy ...

Q. Show the Anatomical Evidence? Anatomy is the study of the structure, organisation and development of cells and tissues of plants and animals. For over a century taxonomists

Determine reagents for determination of protein content, Determine Reagents...

Determine Reagents for Determination of Protein Content Using Biuret Method? Collect the following reagents to conduct the experiment: 1. 0.2 N NaOH solution - Dissolve 8 g

Define role of polyunsaturated fatty acids - gene expression, Define Role o...

Define Role of polyunsaturated fatty acids - Gene Expression? In contrast, polyunsaturated fatty acids (PUFA) inhibit G6PD in both intact animals and in primary hepatocytes in

Define the toxicity of vitamin k, Define the Toxicity of Vitamin K? Vi...

Define the Toxicity of Vitamin K? Vitamin K, does not produce any toxic effects in doses (10-20 mg) normally used for the treatment or subjects suffering from disorders of liv

How to antioxidants work in cancer prevention, How to antioxidants work in ...

How to antioxidants work in Cancer Prevention? As cells function normally in the body, they produce damaged molecules called free radicals. These force radicals, we learnt are

What is bioremediation, What is bioremediation? Bioremediation is the u...

What is bioremediation? Bioremediation is the use of microorganisms, as bacteria, protists and fungi, to degrade noxious substances turning them into non toxic or less toxic su

Assignment., what are the sub- headings in energy?describe energy in biolog...

what are the sub- headings in energy?describe energy in biology?

Define short- lived climatic stressful conditions, How do organisms like:- ...

How do organisms like:- a) fungi, b) zooplanktons and c) bears overcome the temporary short- lived climatic stressful conditions? Define.

What are some prophylactic measures for tapeworm infections, What are some ...

What are some prophylactic measures for tapeworm infections? The main prophylactic measures against taeniasis and cysticercosis are: not to ingest raw or badly cooked swine or

Medical and first aid, Medical and First Aid - Factors Affecting Occupation...

Medical and First Aid - Factors Affecting Occupational Health Depending on the type of work the industry must make arrangement for readily available medical facility. A nearby

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