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

Ecology, Analyse the model that highlights the factors which influence the ...

Analyse the model that highlights the factors which influence the environmental impact of a population

Major groups into which the study of the plants is divided, Q. What are the...

Q. What are the four major groups into which the study of the plants is divided? In Botany the plant kingdom is divided into pteridophytes, bryophytes, angiosperms and gymnospe

Defination and use of stem cell, Stem cell research has been promoted as a ...

Stem cell research has been promoted as a future medical cure-all for a host of diseases, including Alzheimer's and diabetes, as well as a potential breakthrough for organ replacem

Explain tocopherols, Explain Tocopherols These are the most widely dist...

Explain Tocopherols These are the most widely distributed antioxidants in nature, and they constitute the principal antioxidants in vegetable oils.  A relatively high proportio

Differance between pulsus bigerniny or trigeminy presence, Differance betwe...

Differance between pulsus bigerniny or trigeminy and presence of bruit ? Pulsus bigerniny or trigeminy: After every 2nd or 3rd beat respectively there will be a longer inter

Uncomplicated q wave mi-coronary artery bypass surgery, Uncomplicated Q ...

Uncomplicated Q Wave MI :  CABG has very little place in cases of uncomplicated Q wave myocardial infarction. However the place of urgent surgery has to be compared to thrombo

Name the common nitrogen-fixer in paddy field, The common nitrogen-fixer in...

The common nitrogen-fixer in paddy fields is: 1. Rhizobium 2. Azospirillum 3. Oscillatoria 4. Frankia Azospirillum is the common nitrogen-fixer in paddy fields

How many cells are in the average human brain, How many cells are in the av...

How many cells are in the average human brain? Roughly, 6 trillion are in the average human brain.

Steps of research process - nursing research, Steps of Research Process: ...

Steps of Research Process: Identify the Problem: The first  task  in  the  planning stage  is  to identify and stage  the problem, as you have  already learnt in the  earlier

Auxins - apical dominance, Auxins - Apical Dominance The role of auxin...

Auxins - Apical Dominance The role of auxins in controlling the apical dominance was shown by the experiments done by Skoog and Thimann with the broad bean plant. They removed

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