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

Scheme of classification of phylum hemichordate, Q. Scheme of Classificatio...

Q. Scheme of Classification of phylum hemichordate? These are about 90 species of hemichordates. All are marine and live in the open sea or in muddy sediments. Hemichordata wer

Fire protection - factors affecting occupational health, Fire Protection - ...

Fire Protection - Factors Affecting Occupational Health Fire protection and extinguishing devices require to be installed at proper places in the work place and proper notices

Explain national nutritional anaemia prophylaxis programme, Explain Nationa...

Explain National Nutritional Anaemia Prophylaxis Programme (NNAPP)? In past, both access to and intake of iron-folate tablets have been poor in children and therefore had a lit

Explain about ridge mapping, Explain about Ridge mapping Ridge relation...

Explain about Ridge mapping Ridge relationship is also critical especially in cases with multiple implants and fixed prosthesis, which is an advanced treatment procedure. But,

Exercise- heat production, Exercise- Heat Production During physical ...

Exercise- Heat Production During physical activity heat production by exercise can to some extent substitute for heat generated by shivering. However, exercise also tends to

Explain pea plants in genetics, Explain pea plants in genetics? Pea Pl...

Explain pea plants in genetics? Pea Plants :   In pea plants, sperm are located in the pollen grains produced by the anthers of the flower. Eggs are formed in ovules, structur

Explain tertiary butylhydroquinone, Tertiary Butylhydroquinone (TBHQ) T...

Tertiary Butylhydroquinone (TBHQ) TBHQ is moderately soluble in oil and slightly soluble in water. In many cases, TBHQ is more effective than any other antioxidant in providing

What do you mean by echinodermata, Q. What do you mean by Echinodermata? ...

Q. What do you mean by Echinodermata? You will recall that Pliylum Echinodermata includes spiny skinned animals which are exclusively marine (Gr, echinus : spiny; derma: ski

Culture-negative endocarditis, Special studies to diagnose IE caused by fas...

Special studies to diagnose IE caused by fastidious bacteria and other organisms must be performed (serological studies). Thereafter, unless clinical or epidemiologic clues suggest

Determine the function of osseointegration, Determine the function of Osseo...

Determine the function of Osseointegration Osseointegration is also a measure of implant stability, which occurs at two stages- primary and secondary. Primary stability has be

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