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

Enumerate about the wisconsin card sorting test, Enumerate about the Wiscon...

Enumerate about the Wisconsin Card Sorting Test Verbal memory, non verbal memory etc. are tested through the presentation of stimuli such as verbal learning test, selective rem

Explain pr murmur characterstic and graham steel murmur, Explain PR Murmur ...

Explain PR Murmur characterstic and graham steel murmur? PR Murmur Characteristic: Blowing, decrescendo murmur heard loudest in 2nd and 3rd left intercostal space with increa

Define changes associated with the skeletal system - ageing, Define Changes...

Define Changes associated with the skeletal system - Ageing? Skeletal bone loss occurs with ageing and may have serious consequences among the elderly. With ageing, there is so

Would induction of CYP 2E1 raise your blood alcohol level?, If I take a dru...

If I take a drug that induced the synthesis of CYP 2E1 in my system, would that raise or lower my blood alcohol level after I drink a beer or wine (compared to if I hadn''t taken t

What is abscess and gingival biotype, What is Abscess and Gingival Biotype ...

What is Abscess and Gingival Biotype Abscess: Rule out any presence of Periapical or /and Periodontal abscess Gingival Biotype: Thickness of the gingival is an important

Are the alleles of a gene essentially originated, Are the alleles of a gene...

Are the alleles of a gene essentially originated one from the father and the other from the mother? Are there exceptions? It is natural so that alleles have come one from the m

Explain process of glycosylation, Glycosylation: The covalent addition of ...

Glycosylation: The covalent addition of the sugar moities to N or O atoms present in the side chains of various amino acids of certain proteins, usually occuring within the Golgi

Tautomeric shifts, The original DNA sequence when ,transcribed and translat...

The original DNA sequence when ,transcribed and translated would yield five successive valine residues. But the altered sequence would correspondingly read one aspartate and four s

How do you prevent food borne infection, How do you prevent food borne infe...

How do you prevent food borne infection? Prevention of Food borne infections: Avoid consumption of contaminated foods and water Eat properly cooked foods Wash

Gill slits, Gill slits are the opening or the clefts between the gill arch...

Gill slits are the opening or the clefts between the gill arches in the fish. Water taken in by the mouth passes through the gill slits and bathes the gills. It also has rudimenta

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages