Sex differentiation mechanism, Biology

Assignment Help:

SEX DIFFERENTIATION MECHANISM -

Primitive gonads are identical in both sexes upto 6 weeks of gestation pressure.
This gonad is known as bipotential primordial gonad. It is differentiated into cortex and medulla.
Formation & devlopment of gonad is gonadogenesis.
In male devlopement of testes is controlled by Y-chromosome.
Testicular differentiation begins in the 7th week of gestation.
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.
Testes descend down in scrotum in 7th - 8th month. Ext. genitilia appear in male by the 5th month.

Related Discussions:- Sex differentiation mechanism

Display schematically and give all data, Through Nuclear transfer how Dolly...

Through Nuclear transfer how Dolly came into the picture. Show schematically and give all data.

Define the concept of public nutrition, Define the Concept of Public Nutrit...

Define the Concept of Public Nutrition? The rapidly changing global trends in the area of food consumption patterns, lifestyles and environment have a tremendous impact on the

Define potential health benefits from resistant starch, Define Potential He...

Define Potential Health benefits from resistant starch? Like dietary fibre, RS can also play a potential role in helping to maintain or improve health of an individual. As you

What are the major human diseases caused by virus, Q. What are the major hu...

Q. What are the major human diseases caused by virus? Among diseases caused by virus are common cold, variola (considered eradicated nowadays), mumps, measles, rubella, AIDS, t

Do the arteries that carry blood from the heart to the lungs, Do the arteri...

Do the arteries that carry blood from the heart to the lungs have arterial or venous blood? What happens to the blood when it passes through the lungs? Arteries of the pulmonar

Characteristics define cancer - hyperplasia, Characteristics Define Cancer ...

Characteristics Define Cancer - Hyperplasia Hyperplasia is the extreme proliferation of cells which can be observed in normal as well as cancerous tissues. In normal tissue, a

How are the fruits formed, How are the fruits formed? The fecundation i...

How are the fruits formed? The fecundation is in angiosperms triggers the release of hormones that act upon the ovaries. The ovary wall after that it develops into a fruit that

Phospholipids exhibit important biological functions, Phospholipids exhibi...

Phospholipids exhibit important biological functions. They are: a) increase the rate of fatty acid oxidation b) act as inorganic ion carrier across the membrane c) hel

Hardy - weinberg law, HARD Y - WEINBERG LAW - Proposed by G.H. Hard...

HARD Y - WEINBERG LAW - Proposed by G.H. Hardy and W. Weinberg in 1908 independently. The law states "the frequency of genes or alleles in a population remains constant

Fixism what are the main arguments that favor evolutionism, In the scientif...

In the scientific competition against fixism what are the main arguments that favor evolutionism? The major arguments in favor of evolutionism are paleontological, from the stu

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages