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 prevention of iron deficiency, Define Prevention of Iron Deficiency?...

Define Prevention of Iron Deficiency? Iron deficiency anaemia accounts for approximately one-half or more of all the anaemia's seen worldwide. Iron deficiency without anaemia a

Examine six bad listening habits, Discuss six bad listening habits. Which d...

Discuss six bad listening habits. Which do you think is the biggest challenge for you personally?

Explain inhibitors, Explain Inhibitors Inhibitors: Citrate synthase i...

Explain Inhibitors Inhibitors: Citrate synthase is inhibited by ATP, NADH, succinyl CoA and acyl CoA derivative of fatty acids (fatty acyl CoA). The rate of the reaction is

Explain flucytosine, Explain Flucytosine Flucytosine (Ancobon) - Potent...

Explain Flucytosine Flucytosine (Ancobon) - Potentially lethal, dose-related bone mar- row toxicity, colitis and rapid development of resistance when used alone limit the use o

Why energy requirement are different in different situations, Why do you th...

Why do you think the energy requirements are different in situations? Well the requirement is dependent on the ways in which the body spends energy. For example in the first c

What are risk factors for diseases, What are risk factors for diseases? ...

What are risk factors for diseases? Risk factors for a disease are everything that contributes to enhance the risk of the disease to appear. For instance, for most cardiovascul

ABO and rhesus blood group, details of these blood groups

details of these blood groups

Explain proteins as carriers, Explain Proteins as carriers? A large var...

Explain Proteins as carriers? A large variety of compounds are carried in the blood between tissues and organs of the body. Some of the compounds require specific protein for t

Chronic aortic regurgitation-indications for surgery, Chronic Aortic Regurg...

Chronic Aortic Regurgitation : Several factors have to be taken into account before recommending surgery. These include severity of symptoms and LV function. With evidence o

Define volumetric flasks - nutritional biochemistry, Define volumetric flas...

Define volumetric flasks - Nutritional Biochemistry A volumetric flask is used to make up a solution of fixed volume very accurately. It is calibrated to contain a particular v

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages