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

What are the cell types that form the phloem, What are the cell types that ...

What are the cell types that form the phloem? What are the main features of those cells? The major cells that form the phloem are the sieve elements and the companion cells. Th

Assuming the equilibrium potential for sodium ion, Assuming that the equili...

Assuming that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM and the in

Hyperthyroidism (graves disease), Hyperthyroidism (Graves Disease): Gr...

Hyperthyroidism (Graves Disease): Graves diseases is  the most common cause of hyperthyroidism  in  children and is usually associated with an  enlarged thyroid gland and exop

Cleavage, what are the chemical changes during cleavage

what are the chemical changes during cleavage

Illustrate the nature of the stimulus, Q. What is the nature of the stimulu...

Q. What is the nature of the stimulus received and transmitted by the neurons? Neurons transmit and receive chemical stimuli through neurotransmitters released in the synapses.

Temperate shrublands, These are areas where woody shrubs predominate rather...

These are areas where woody shrubs predominate rather then trees. In regions with a Mediterranean type of climate i .e., hot dry summers and cool wet winters, shrubs grow close tog

Pollutions, what is detergent pollution and it''s effects and causes

what is detergent pollution and it''s effects and causes

Explain shannon-wiener index, Q. Explain Shannon-Wiener index? This div...

Q. Explain Shannon-Wiener index? This diversity measure is based on information theory of measure of order (or disorder) within a particular system. For our uses, this order co

Define proteins, Define Proteins, Carbohydrates required for anorexia nervo...

Define Proteins, Carbohydrates required for anorexia nervosa? A. Proteins To ensure adequacy, minimum protein intake should equal the recommended dietary intake for age and

What do you mean by primary visual and auditory cortex, Q. What do you mean...

Q. What do you mean by Primary Visual and Auditory Cortex? Primary Visual Cortex - in posterior aspects of occipital lobes.  Receives visual information from optic nerve (crani

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