Characterstics of cleavage, Biology

CHARACTERSTICS OF CLEAVAGE -

  1. In cleavage involve the series of mitotic division, so daughter cells are genetically similar to the parental cell.
  2. The resulting cells are called blastomere.
  3. During cleavage, there is no growth during interphase period, so the size of blastomeres become smaller and smaller.
  4. Blastomere do not move, so the size, volume and general shape of blastula remain same throughout the cleavage.
  5. The rate of cleavage is more in the beginning but gradually it becomes slow. It is decided by the ooplasm.
  6. O2 consumption increased during cleavage.
  7. Lack of Oand excess of COinhibit the process of cleavage.
  8. Initially karyo-cytoplasmic ratio is low in cleavage but in the last it become similar to the somatic cell.
  9. Every cleavage result in double number of blastomere.

 

Posted Date: 10/3/2012 8:52:06 AM | Location : United States







Related Discussions:- Characterstics of cleavage, Assignment Help, Ask Question on Characterstics of cleavage, Get Answer, Expert's Help, Characterstics of cleavage Discussions

Write discussion on Characterstics of cleavage
Your posts are moderated
Related Questions

What is the role of platelet plug formation in hemostasis? What events occur during platelet plug formation? Describe the circumstances that may induce inappropriate platelet plug

what are the disadvantages of protozoa

Q. What are the major events of the second mitotic period? The second mitotic period is the metaphase. In metaphase the following events occur condensed chromosomes bind in the

Explain about the Ocular Haemodynamics. The pressure in the ocular arteries can be measured by optical ophthalmodynamometer. The intraocular pressure is raised to the level tha

What is telophase? Telophase is the cell divides apart and screws itself.

Syngamy and Triple Fusion After traversing through the stylar region, the ultimate destination of the pollen tube is to reach the female gametophyte and release the male game

Myocarditis Myocarditis is inflammation of the myocardium, of the heart muscles. i) Causes Infection: . Wrus, bacteria, fungus, parasites Non-infection: Radi


EGESTION To give out undigested food from alimentary canal. Faeces can remain in colon for 36 hrs. then moving into rectum by gastro-colic reflex. Faeces consists of 3