Sex differentiation mechanism, Biology

Assignment Help:

SEX DIFFERENTIATION MECHANISM -

  1. Primitive gonads are identical in both sexes upto 6 weeks of gestation pressure.
  2. This gonad is known as bipotential primordial gonad. It is differentiated into cortex and medulla.
  3. Formation & devlopment of gonad is gonadogenesis.
  4. In male devlopement of testes is controlled by Y-chromosome.
  5. Testicular differentiation begins in the 7th week of gestation.
  6. Differentiation of ovaries occur later in female in comparision to male or testes. It begins int he 11th or 12rh week of gestation under control of XX chromosomes.
  7. Testes descend down in scrotum in 7th - 8th month. Ext. genitilia appear in male by the 5th month.

Related Discussions:- Sex differentiation mechanism

Epidemiological association between hemophilia and HIV, What is the epidemi...

What is the epidemiological association between hemophilia and HIV infection? As hemophilic patients need frequent transfusions of clotting factors (VIII or IX) they are more s

Population growth - population parameters, Population Growth - Population P...

Population Growth - Population Parameters and Regulation The size of a population depends upon the balance between natality and immigration through which individuals are added

Discuss the health impact of any one specie, Discuss the economic/health im...

Discuss the economic/health impact of any one species of harmful water molds.

Relate osseointegration with biointegration, Osseointegration Vs. Biointegr...

Osseointegration Vs. Biointegration In 1985, dePutter observed that there are two ways of implant anchorage or retention: mechanical and bioactive. Mechanical retention refers

Define caution for the use of pipettes - food microbiology, Caution for the...

Caution for the use of Pipettes - Food Microbiology? (1) Never do pipetting with mouth. (2) For culturing, sterilized pipettes should be used. (3) Never keep pipettes on

Acrylamide gel, Acrylamide gel  is a polymer gel used for electrophoresis o...

Acrylamide gel  is a polymer gel used for electrophoresis of DNA or protein to measure their sizes (in the daltons for proteins, or in base pairs for DNA). See "Gel electrophoresis

Why is rubella during gestation a threat to the fetus, Why is rubella durin...

Why is rubella during gestation a threat to the fetus? If occurring during gestation rubella is a dangerous disease due to the virus crosses the placenta and contaminates the f

Development of endosperm, Development of Endosperm In a fertilized emb...

Development of Endosperm In a fertilized embryo sac, the primary endosperm nucleus is generally observed below the zygote. It divides, and further divisions of its products gi

What are the three main types of rna, What are the three main types of RNA?...

What are the three main types of RNA? What is meant by heterogeneous RNA? Messenger RNA, or mRNA, transfer RNA, or tRNA, and ribosomal RNA, or rRNA, are the three main kinds of

Gametogenesis, The process by which gametes are produced in the gonads is k...

The process by which gametes are produced in the gonads is known as gametogenesis. The process of formation of male gametes or sperm is known as spermatogenesis is of great sign

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