Cleavage - development biology, Biology

Assignment Help:

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.


Related Discussions:- Cleavage - development biology

Describe pulsus paradaxus pulse volume, Describe pulsus paradaxus pulse vol...

Describe pulsus paradaxus pulse volume? Pulsus Paradaxus: Pulse volume becomes smaller in inspiration and larger in expiration. This is an exaggeration of normally occurring ph

What is bile salts, What is Bile salts Bile salts have a considerable...

What is Bile salts Bile salts have a considerable ability to lower surface tension. By  this property, they prevent  the coming together of the small fat droplets in  the  in

Preprocedure care, BRONCHOSCOPY: Bronchoscopy is the passage of lighte...

BRONCHOSCOPY: Bronchoscopy is the passage of lighted bronchoscope into the bronchial tree. Bronchoscopy may be performed with  rigid steel of flexible fiberoptic instruments.

Nursing interventions of a patient with acute alcohol, Nursing Intervention...

Nursing Interventions of a Patient with Acute Alcohol: Intoxication  and Withdrawal Some nurses find it very difficult to work with the alcoholics. This is particularly true w

What is a pipette and how is it used, What is a pipette and how is it used?...

What is a pipette and how is it used? There are lots of types of pipettes (or pipette), but most are basically a fancier version of a medicine dropper or eye dropper. They are

What elements are present in a lipid, a) What are the two types of chemical...

a) What are the two types of chemical compound which combine to form a lipid? b) What elements are present in a lipid? a) Lipids are formed from the combination of

What is polymerase chain reactionin genetics, What is Polymerase Chain Reac...

What is Polymerase Chain Reactionin genetics? A great advance in sequencing and cloning DNA is the polymerase chain reaction, devised by the American biochemist Kary Mullis in

Explain salient features of pulmonary tuberculosis, Salient Features of pul...

Salient Features of pulmonary tuberculosis The salient features tuberculosis include: Wasting of tissues Exhaustion Cough Expectoration, and Fever The acute p

What is the relation between vitamins and enzyme cofactors, Many vitamins a...

Many vitamins are enzyme cofactors that cannot be synthesized by the organism and must be attained from the diet.

Biologists established that new cells, Biologists established that new cell...

Biologists established that new cells Consequent to this doctrine, biologists established that new cells are formed by cell division and by the end of the nineteenth century, t

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