Blastulation, Biology

Assignment Help:

BLASTULATION -

  1. Type of blastula is blastocyst or trophoblastula.
  2. Outer layer of cell becomes flat and form trophoblast or trophoectoderm which receives nutritive materials from endometrial glands.
  3. Blastocoel or segment cavity present. Towards A.P. cells mass form embryonal knob.
  4. This side is also called embryonic pole, opposite to it is abembryonic pole.
  5. Zona pellucida disappear at the time of blastocyst formation.

Related Discussions:- Blastulation

Carbon filtration or activated carbon process, Activated carbon has a much ...

Activated carbon has a much higher adsorption capacity than other materials. Carbon adsorbs objectionable odours, flavours, organic compounds and many hazardous chemicals. There

What are the methods of foams, What are the methods of foams? There are...

What are the methods of foams? There are two basic methods in  the formation of foams i.e. a) whipping and b) condensation.

Determine the stages of healing events, Determine the stages of healing eve...

Determine the stages of healing events The healing events are described in 3 stages Stage 1: Wound healing and formation of woven bone (callus) (2 to 6 weeks) Stage 2: La

Can serotonin used in consciousness, Q. Can Serotonin used in consciousness...

Q. Can Serotonin used in consciousness? Serotonin complements the action of noradrenalin and acetylcholine in promoting wakefulness and cortical responsiveness. Experiments pro

What are the advantages of the closed circulatory system, What are the adva...

What are the advantages of the closed circulatory system over the open circulatory system? The closed circulatory system is more efficient. As blood circulates only inside bloo

Describe about transposition of the great arteries, Describe about Transpos...

Describe about Transposition of the Great Arteries ? Abnormal origin of the great artesies from the ventricular complex. Pulmonary Artery arises from the morphological left ven

Response to flooding, Response to Flooding Prolonged flooding or water...

Response to Flooding Prolonged flooding or water-logging creates anaerobic conditions for the sub-surface parts of the plant and synthesis of alcohol dehydrogenase (ADH) helps

Environment , Environment All organisms are intimately dependent on the ...

Environment All organisms are intimately dependent on the environment from which they derive their sustenance. Organisms from virus to man are obligatorily dependent on the envi

What are the gibberellins, What are the gibberellins? And where are they pr...

What are the gibberellins? And where are they produced? The Gibberellins are plant hormones that stimulate plant growth, fruit formation (also parthenocarpy) and the germinatio

Explain the queens college step test, Explain the Queens College Step Test?...

Explain the Queens College Step Test? This test can be administered to large groups or those who are incapable of doing a test up till exhaustion. For this test, a bench (41 c

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