Sex differentiation mechanism, Biology

Assignment Help:

SEX DIFFERENTIATION MECHANISM -

  1. Primitive gonads are identical in both sexes upto 6 weeks of gestation pressure.
  2. This gonad is known as bipotential primordial gonad. It is differentiated into cortex and medulla.
  3. Formation & devlopment of gonad is gonadogenesis.
  4. In male devlopement of testes is controlled by Y-chromosome.
  5. Testicular differentiation begins in the 7th week of gestation.
  6. 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.
  7. Testes descend down in scrotum in 7th - 8th month. Ext. genitilia appear in male by the 5th month.

Related Discussions:- Sex differentiation mechanism

How are roots affected by water, How are roots affected by water? Grow ...

How are roots affected by water? Grow some seedlings in single end of a glass dish or pan. When they are about 5 cm tall start watering them on one side only and a little dista

Vitamins necessity, Vitamins necessity Vitamins are essential organi...

Vitamins necessity Vitamins are essential organic substances. They are micro nutrients and required in small quantities. They do not produce any energy by themselves.

Lentic ecosystems, Lentic Ecosystems Lakes are inland, depressions co...

Lentic Ecosystems Lakes are inland, depressions containing standing water. They vary considerably in area and depth. The largest lake in the world, the lake Superior in North

Enumerate about the halstead- reitan battery, Enumerate about the Halstead-...

Enumerate about the Halstead- Reitan battery As in the case of the Halstead- Reitan battery, one could present two theoretical bases for the Luria- Nebraska, one revolving arou

Mammals - regeneration in vertebrates, Mammals - Regeneration in Vertebrate...

Mammals - Regeneration in Vertebrates Mammals are not capable of regenerating limb or tails. However, there are a few exceptions where lost tissues are regenerated. The annual

Animal biodiversity, Discuss why Obelia is considered to be of special inte...

Discuss why Obelia is considered to be of special interest in Zoology as an animal showing an intermediate grade of organization.

What are organic chemical groups that divide carbohydrates, What are the or...

What are the organic chemical groups that characterize carbohydrates? How are carbohydrates classified according to the presence of those groups? Carbohydrates are also called

Homeostasis., drawandlabelthemajorendocrineglandsinthehumanbody

drawandlabelthemajorendocrineglandsinthehumanbody

Determine the principle of brain and behaviour, Determine the Principle of ...

Determine the Principle of Brain and Behaviour A second principle is that insight into children's adaptation can be gained through an analysis of brain behaviour relationships.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd