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

Biogenesis of mitochondria, BIOGENESI S OF MITOCHONDRIA De Novo for...

BIOGENESI S OF MITOCHONDRIA De Novo formation i.e. new formation. It is not confirmed. New mitochondria are formed by division (Amitosis) of pre-existing mitochondria.

Explain supravalvular aortic stenosis murmur, Explain Supravalvular aortic ...

Explain Supravalvular aortic stenosis murmur? Supravalvular Aortic Stenosis Murmur : Characteristic: Murmur may be loudest in 1st Right ICS. It isn't associated with systolic

Illustrate thallium scintigraphy, Q. Illustrate Thallium Scintigraphy? ...

Q. Illustrate Thallium Scintigraphy? It is often done with SPECT (single photon emission computed tomography) which further increases the sensitivity. However, a stress test w

Describe in detail about the cytoplasm, Describe in detail about the Cytopl...

Describe in detail about the Cytoplasm Cytoplasm also possesses a number of dense granular elements (about 25,000 per cell) called the ribosomes, which are the sites of protein

Coal gas, When coal is carbonized coke is formed along with coal gas.   ...

When coal is carbonized coke is formed along with coal gas.                             1300 0 C          Coal                                  coke + coal gas

Determine dominant individual fromhomozygous or heterozygous, Why can cross...

Why can crossing of an individual that manifests dominant phenotype with another that manifests recessive phenotype (for the same trait) determine whether the dominant individual i

Population and sigmoid curve, Name two possible why the number of live bact...

Name two possible why the number of live bacteria cell have reached the stationary growth by 60hrs and start to die off after 12hrs?

Subatomic Particles, We have end of semester exams coming up meaning that a...

We have end of semester exams coming up meaning that a majority of it will be over subatomic particles

How different are pteridophytes from bryophytes, How different are pteridop...

How different are pteridophytes from bryophytes regarding substance transport? Pteridophytes are tracheophyte (vascular) plants, i.e., they have tissues specialized in conduct

Pathophysiology and assessment of iron deficiency anaemia, Pathophysiology ...

Pathophysiology   Insufficient  amount of iron present in the body leads  to reduction in serum transferrin (Serum betaglobulin, which binds and transports iron) saturation.  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