Cleavage, Biology

CLEAVAGE -

Holoblastic & unequal. First plane is meridional. 2 blastomeres are formed. 1 megamere & another micromere.

2nd plane is also meridional but at 90° to first one.

It takes first in larger blastomere, so for short time 3 celled stage is formed followed by 4 celled stage of embryo.

Posted Date: 10/3/2012 6:10:48 AM | Location : United States







Related Discussions:- Cleavage, Assignment Help, Ask Question on Cleavage, Get Answer, Expert's Help, Cleavage Discussions

Write discussion on Cleavage
Your posts are moderated
Related Questions
GIVE THE SHORT DETAIL OF HE BIOLOGICAL METHODS

Explain HIV/AIDS HIV/AIDS is another example of  chronic infections.  Its existence was discovered recently in 1981. The spread  of  HIV infection  is widespread  and  can  pro

Q. What are the major cells of the connective tissue proper? What is the name given to the intercellular material that surrounds these cells? The major cells of the connective

How to grow root hairs Hairs can simply be seen on the roots of mustard seed grown on a damp flannel. Seeds placed on an earthenware dish standing in a soup plate having water

Q. Define Bioactive materials? Bioactive materials: Certain glasses, ceramics, and glass-ceramics that contain oxides of silicon, sodium, calcium and phosphorus (SiO 2 , Na 2

Explain the Peptones - Complex Media? Peptones are protein hydrolysates obtained by partial digestion of meat, casein, soya meal, gelatin or other protein source. These provide

Define reagent required and methodology for Barfoed Test? Reagents - Solutions of glucose, fructose, galactose, lactose, maltose, sucrose and starch - Barfoed's reagent

Determine about the nervous tissues The nervous tissues throughout the body, including the visual nervous system, are continuously active. Electrical reactions can only be indu

What are some examples of the control and informative function of organic molecules? Based on genetic information, organic molecules control the whole work of the cell. The nuc

Prevention of perinatal transmission  Zidovudine alone, started at 14-34 weeks of gestation and continued in the infant for the first 6 weeks of life, reduced HIV transmission