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

Define about the hyponatremia and hypernatremia, Define about the Hyponatre...

Define about the Hyponatremia and Hypernatremia? Serum concentration of sodium is normally regulated within the range of 135 to 145 milimole per litre (a). Hyponatremia is defi

What are examples of nematodes, What are examples of nematodes? Ascaris...

What are examples of nematodes? Ascaris, hookworm and filaria, all parasites of humans, are instance of nematodes (also called as roundworms).

Explain food intolerances, Food Intolerances Food Intolerances: The in...

Food Intolerances Food Intolerances: The intolerances of the patient for specific food items must be assessed. For example, milk may lead to diarrhoea in some people whil

Mixed mitral stenosis and regurgitation, Mixed Mitral Stenosis and Regurgit...

Mixed Mitral Stenosis and Regurgitation The most common cause for a combined lesion is rheumatic, Very rarely; it could be of congenital origin. Regurgitation in a stenotic val

Glucose-6-phosphate to glucose, Glucose-6-phosphate to Glucose Glucose...

Glucose-6-phosphate to Glucose Glucose-6-phosphate to Glucose : Glucose-6-phosphate is converted to glucose by glucose-6-phosphatase which is present in intestine, liver and

The mitochondria contain their own dna, Why do you think the mitochondria c...

Why do you think the mitochondria contain their own DNA (circular) and have a double membrane?

Fields in ecology, Ecology is divided into two fields: (a)Autecology...

Ecology is divided into two fields: (a)Autecology (b) Synecology (a) Autecology: it deals with life history, population dynamics, behavior etc of a single

Photosynthesis, how does the green plant build up carbohydrates

how does the green plant build up carbohydrates

How are artificial and natural pearls created, Q. How are artificial and na...

Q. How are artificial and natural pearls created? Pearls are made from small strange particles that deposit between the mantle and the shell of the oyster. These particles trig

How to create a 20 organism ecosystem quick, i need to create a 20 organism...

i need to create a 20 organism forest ecosystem, help?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages