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

What is cardiac catheterization, Q. What is Cardiac Catheterization? Ro...

Q. What is Cardiac Catheterization? Routine cardiac catheterization is not necessary in patients with mitral regurgitation. It may be done when there is discrepancy between cli

Sperm, what is sperm

what is sperm

Differences between prokaryotes and eukaryotes, Differences between Prokary...

Differences between Prokaryotes and Eukaryotes It is obvious that there are a number of differences between them. Prokaryotes, like bacterial cells are generally much smaller,

Poising capacity of food, As redox conditions change, there will be some re...

As redox conditions change, there will be some resistance to change in a food's redox potential. This is known as poising capacity of food. This capacity is dependent on the concen

Standardization of copper sulphate solution, It involves the standardizatio...

It involves the standardization of copper sulphate solution. This is same as done in the previous activity. 1) Pipette accurately 5 ml of Solution A and Solution B in conical f

Determine the sodium-potassium atpase pumps, A normal healthy cell is bathe...

A normal healthy cell is bathed in a normal extracellular saline. The plasma membrane of the cell contains voltage-gated sodium channels, sodium-glucose co-transporters, and sodiu

Wigs and hairs - seed appendages, Wigs and hairs - Seed Appendages Se...

Wigs and hairs - Seed Appendages Seeds of certain plants have epidermal outgrowths or the integuments themselves may form folds and projections that present a wing-like appea

Conduction of impulse, CONDUCTIO N OF IMPULSE - IN NON-MYELINATED AXO...

CONDUCTIO N OF IMPULSE - IN NON-MYELINATED AXONS - The impulse moves along the axon as local effect by altering the permeability of neighbouring Na + channels and af

Observation or inference for half and full saturation test, Define Observat...

Define Observation or Inference for half and full saturation Test? 1. Starch is precipitated by half saturation with ammonium sulfate whereas dextrin is not precipitated. This

Realization of p-d polarity of limb, Realization of P-D Polarity of Limb ...

Realization of P-D Polarity of Limb Realization of P-D polarity of limb expressed in a specified proximo-distal sequence of differentiation of limb pans is controlled through

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages