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

Define factors affect the rate and total drying time, Define factors affect...

Define factors affect the rate and total drying time? Four main factors affect the rate and total drying time, which include: a) The properties of the products (the moisture

Occurrence of jaundice, Occurrence of Jaundice Excessive production ...

Occurrence of Jaundice Excessive production of bilirubin - this occurs in some diseases due to destruction of large number of red blood cells in the liver. Obstruction to

Explain hydrolyases, Hydrolyases These enzymes (code EC 3) catalyze th...

Hydrolyases These enzymes (code EC 3) catalyze the hydrolytic cleavage of C-O, C-N, C-C and some other bonds, including phosphoric anhydride bonds.  Their trivial names  are f

Hepatitis, He p atitis Hepatitis is defined as degenerative/ inflamma...

He p atitis Hepatitis is defined as degenerative/ inflammatory processes of the liver. The clinical manifestations associated with hepatic dysfunctions results from impairmen

What are the three main parts of a eukaryotic cell, The eukaryotic cell can...

The eukaryotic cell can be separated into two major portions: the cell membrane that divides the intracellular space from the outer space phisically delimiting the cell; the cytopl

Explain the voges proskauer (vp) test, Explain the Voges Proskauer (VP) Tes...

Explain the Voges Proskauer (VP) Test? As it has been discussed in previous exercise, second group of enteric bacteria produces acid during early incubation which rapidly conve

Explain the different types of cells in cell structure , Explain the differ...

Explain the different types of cells in cell structure ? Types of Cells :  Cells can be classified as being either prokaryotic or eukaryotic depending on whether or not a mem

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 endocytosis , Endocytosis is the uptake of extracellular macr...

Endocytosis is the uptake of extracellular macromolecules   across the plasma membrane into the cell. The objects to be ingested is progressively  enclosed by a  small  portion  of

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