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

Arteral supply of the heart, The branches of the left coronary artery are ...

The branches of the left coronary artery are anterio interventricular artery (AIV artery) and circumflex artery which is considered to be the continuation of the left coronary art

Define multiple tube fermentation test, Define Most Probable Number Test (M...

Define Most Probable Number Test (Multiple Tube Fermentation Test)? Presence of coliforms in the water sample can be detected by performing multiple tube fermentation test whic

Roles of glycogen metabolism, Glycogen is a huge polymer of glucose residue...

Glycogen is a huge polymer of glucose residues linked by α1-4 glycosidic bonds with branches every 10 residues or so by α1-6 glycosidic bonds. Glycogen gives an significant energy

Types of nursing units, TYPES OF NURSING UNITS: The design of nursing ...

TYPES OF NURSING UNITS: The design of nursing unit should maximize the function of the unit by following its task. The design of nursing unit has also under gone a radical cha

Explain functional property of gelation/viscosity, Explain Functional prope...

Explain Functional property of Gelation/Viscosity Mode of action Protein-protein interactions produce matrix formations and setting Food system Salad dressings,

Ordinary share capital, Ordinary share capital This type of Equity fi...

Ordinary share capital This type of Equity finance is raised from the public from the sale of ordinary shares to the shareholders. This finance is presented to limited compan

Estuaries - aquatic ecosystems, Estuaries - Aquatic Ecosystems All the...

Estuaries - Aquatic Ecosystems All the rivers and lakes ultimately drain into the sea. However, many rivers develop a highly specialised zone before joining the proper sea. Th

Solid or liquid at room temperature, do fats with one or more 'kinky' tail ...

do fats with one or more 'kinky' tail fatty acids tend to be solid or liquid at room temperature? These are found in triglycerides forming what? Solid fats or oils? Is it opposite

Do echinoderms have an excretory system, Q. Do echinoderms have an excretor...

Q. Do echinoderms have an excretory system? How is excretion done in these animals? Echinoderms do not have an excretory system their excretions are eliminated by diffusion.

What is chromosomes, What is Chromosomes ? The terminology used to desc...

What is Chromosomes ? The terminology used to describe DNA replication may sometimes be confusing. Originally, the term "chromosome" referred to the structures seen through the

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages