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

Explaintransketolase, ExplainTransketolase Transketolase with the help...

ExplainTransketolase Transketolase with the help of TPP and Mg ++ is required again. This time it transfers carbon 1+2 from xylulose-5-phosphate to erythrose-4-phospha

Define role of nutrients in controlling gene expression, Define Role of Nut...

Define Role of Nutrients in Controlling Gene Expression? The role of several nutrients in controlling gene expression, as mentioned earlier, is in infancy, but with advancing b

Life cycle of parasite - protozoan, Life cycle of Parasite - Protozoan ...

Life cycle of Parasite - Protozoan The life cycle of the parasite in man begins when an infected mosquito, while biting and taking a blood meal, injects sporozoites into the

Equipment of circulatory assist devices, Equipment : Basically, it has an...

Equipment : Basically, it has an intra aortic balloon pump. A balloon with a capacity of 40 ml is passed percutaneously through the femoral artery up to the upper end of descen

From which substances is chromatin made, Chromatin is made of DNA molecules...

Chromatin is made of DNA molecules associated to proteins known as histones.

Explain the objectives of nutritional care, Explain the Objectives of nutri...

Explain the Objectives of nutritional care? - To minimize the development of nutrient imbalance. - To maintain fluid and electrolyte homeostasis - To promote energy equil

Disease control and prevention reports, Disease Control and Prevention repo...

Disease Control and Prevention reports: Body Mass Index is a reliable indicator of body fat for most children and teens. BMI is calculated from a child's weight and height is

Primary prevention of diabetes mellitus, Q. Primary prevention of diabetes ...

Q. Primary prevention of diabetes mellitus? Approaches to Prevention: There are various approaches to prevention. Four levels of prevention related to different stages of a di

The human impact on the environment, what are the principle sources of exce...

what are the principle sources of excessive nitrate and phosphate in rivers and lakes?

Gametes and developmental biology, Amphibian frog embryo

Amphibian frog embryo

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages