Cleavage - development biology, Biology

Cleavage - Development Biology

Cleavage or segmentation is a series of cell divisions of the fertilized .egg through which it is converted into a multicellular structure, called blastula. The main characteristics of cleavage include:

  1. The unicellular fertilised egg is transformed by consecutive mitotic divisions into a multicellular body.
  2. Particularly no growth takes place during cleavage.

The cell divisions in the somatic cells are mitotic. The daughter cells or blastomeres or cleavage cells are also derived as a result of mitotic divisions of the zygote. We may ask whether there are any differences between mitotic divisions of somatic cells and, of the zygote and the blastomeres derived from it during cleavage.

Posted Date: 1/25/2013 12:55:42 AM | Location : United States







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

Write discussion on Cleavage - development biology
Your posts are moderated
Related Questions
What is the route of the ingested food from swallowing until the duodenum? Unless reaching the duodenum the food enters the mouth, passes the pharynx, goes down the esophagus a

Explain about the Soil morphology Soil morphology is the description of the soil body and its general characteristics. The morphology of the soil is expressed by number, kinds

Sticky sweet method Richwil crown and bridge remover -It is a resin block of water-soluble , like a stick sweet -It is first softened in hot water -Placed on the restorat

What is the digestive enzyme that acts within the stomach? Which type of food does it digest? What are the cells that produce that enzyme? The digestive enzyme that acts in the

What is myoglobin? What is the function of this molecule in the muscle tissue? Myoglobin is a pigment same to hemoglobin and present in muscle fibers. Myoglobin has a great af

Is monoculture a system that contributes to great biological diversity of an ecosystem? Monoculture means that in a large area a single crop (only single species of plant) is c

Cold Hardiness and Cold Acclimation In connection with cold response we would like to introduce two terms- cold hardiness and cold acclimation. Cold-hardiness ref

Point out some Guidelines for breast-feeding? 1) Follow demand feeding of the baby instead of a fixed schedule. 2) Initiate breast-feeding within 2 h after a normal delivery

D- and L- glucose are Select one: a. stereoisomers b. configurational isomers c. optical isomers d. enantiomers e. all of the above

Counselling a diabetic patient and their family members is very important as patient has to modify the life style and diet and needs family support. Therefore it is important for y