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

Explain cultivation of microorganisms, Explain Cultivation of microorganism...

Explain Cultivation of microorganisms It is for the production of food colourants has attractions, these must be measured against the financial legislative and user constraint

Define the major source of vitamin a, Define the major source of vitamin A?...

Define the major source of vitamin A? The major source of vitamin A, as you may be aware, is the carotenoid pigments which are synthesized by plants. Several carotenoid possess

Nutritional management of steatorrhoea, Q. Nutritional management of steato...

Q. Nutritional management of steatorrhoea? The Nutritional management of steatorrhoea should focus on the following: • Plenty of rest and relaxation and avoid stress •

ANIMAL KINGDOM , CLASSIFICATION OF PHYLUM PLATYHELMINTHES..

CLASSIFICATION OF PHYLUM PLATYHELMINTHES..

What are the major types of lipids, Q. What are the major types of lipids? ...

Q. What are the major types of lipids? The main types of lipids are phospholipids, triglycerides (fats and oils), waxes and steroids.

Case study haematology, case study haematology

case study haematology

Evolution of the cell, EVOLUTION OF THE CELL All the living organisms a...

EVOLUTION OF THE CELL All the living organisms are made up of cells. A living cell may be defined as a compartment enclosed by a membrane that consists of several chemical cons

Recycling of plasma membrane components, Recycling of Plasma Membrane Compo...

Recycling of Plasma Membrane Components During exocytosis secretory vesicles fuse with plasma membrane, adding to the membrane surface area. Yet, the surface area of plasma me

Enumerate the important surgical anatomical structure, Enumerate the import...

Enumerate the important surgical anatomical structures in maxilla and the structures present in the posterior wall of the maxillary sinus. The important surgical anatomic struc

How is the excretory system of molluscs characterized, Q. How is the excret...

Q. How is the excretory system of molluscs characterized? Molluscs have one or two pair of spongelike nephridia, similar to kidneys

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages