Introduction to cleavage, Biology

Assignment Help:

INTRODUCTION -

  1. Karl Von Baer - Coined the term cleavage. Swammerdom - First time seen cleavage.
  2. Prevost and Dumas - Reported cleavage of frog's egg. Spllanzani - Detailed process of cleavage of frog's egg.
  3. Balfour - Explained that, the rate of cleavage depend upon the amount of yolk.
  4. Process of progressive subdivision of the zygote by mitotic cell division into an increasing number of cells of progressively decreasing size is called cleavage.
  5. Clevage is a rapid mitotic division of zygote to form a hollow, spherical & multicellular embryo.
  6. Cleavage is also called cellulation or segmentation.

Related Discussions:- Introduction to cleavage

Viral diseases - avian encephalomyelitis, V i ra l Diseases A v ...

V i ra l Diseases A v ian encephalomyelitis This is enterovirus disease of chicken, pheasants, turkeys and Japanese quails caused by the member of the family Pi

Fisson, what is mean by fisson

what is mean by fisson

What is an illustration of gene control, Q. What is an illustration of gene...

Q. What is an illustration of gene control? An elegant instance of gene control in bacteria is operon system. A cluster of genes which is responsible for synthesizing a particu

Beta - blockers, Beta-blockers have traditionally been considered contraind...

Beta-blockers have traditionally been considered contraindicated in patients with heart failure because they may block the compensatory actions of the sympathetic nervous system wi

Determine the strengths of full battery measures, Determine the Strengths o...

Determine the Strengths of Full Battery Measures 1) Wide range of scores allow differential diagnosis in various cognitive disorders 2) More reliable, and sensitive 3) Br

What are x-linked traits, What are X-linked traits? The X-linked traits...

What are X-linked traits? The X-linked traits are the phenotypical traits conditioned by genes located in the nonhomologous (heterologous) portions of the X chromosome.

What is the swinging flashlight test used for, What is the swinging flashli...

What is the swinging flashlight test used for It is done to check the relative afferent pupillary defect in an eye that is blind from optic nerve disease.

Techniques of closed heart surgery, Techniques :  Depending on the type of...

Techniques :  Depending on the type of surgery planned, the heart may be approached through median sternotomy, left or right thoracotomy. The problems encountered could be due to

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