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

The right side of the container, A solute passes from higher concentration ...

A solute passes from higher concentration on the left of a container to the right side of container thru a membrane. What would happen if a second solute of lower concentration was

What is nervous system, What is Nervous System? The nervous system is m...

What is Nervous System? The nervous system is made up of associations of cells called neurons. Bundles of neurons are called nerves. The nervous system is divided into two part

Why are broad-spectrum antibiotics used to treat infections, Why are broad-...

Why are broad-spectrum antibiotics often used to treat infections caused by unidentified pathogens? What is the danger associated with overusing such antibiotics? As broad-spec

How are the main classes of arthropods classified, How are the main classes...

How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are species with direct and oth

Psychosocial therapy, PSYCHOSOCIAL THERAPY: Psychosocial therapy is on...

PSYCHOSOCIAL THERAPY: Psychosocial therapy is one of the important treatment modaIities used for the patients with mental disorders. It is given along with other therapies or

Explain clinical dietetics and diet therapy, Explain Clinical dietetics and...

Explain Clinical dietetics and Diet therapy Clinical dietetics : The application of dietetics in a hospital or health care institutional setting. Diet therapy :

Sporophyte positioned in relation to the gametophyte, Q. Generally where is...

Q. Generally where is the sporophyte positioned in relation to the gametophyte in bryophytes? How does the sporophyte obtain nutrients? The bryophyte sporophyte generally is a

Explain the inferior dental nerve, Explain the inferior dental nerve T...

Explain the inferior dental nerve The inferior dental nerve in some cases may divide into two or three rami that occupy separate canals as the nerve travels in the mandible to

Describe the effects of acid precipitation on ecosystems, What are the effe...

What are the effects of acid precipitation on ecosystems?

Explain about aerobic respiration, Which is the cell organelle that is spec...

Which is the cell organelle that is specialized in aerobic respiration? The cell organelles that are specialized in aerobic respiration are the mitochondria. Cell Respiratio

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages