Principles governing cleavage, Biology

Assignment Help:

Principles Governing Cleavage

a) The nucleus and mitotic achromatic figure tend to occupy the centre of active cytoplasmic density of the dividing cells, e.g., in isolecithal eggs or microlecithal eggs, the spindle is formed centrally in the cell while in the telolecithal eggs, and it is formed nearer the animal pole.

b) Each new cleavage furrow tends to intersect the plane of the preceding cleavage furrow at right angle.

c) The cells or blastomeres tend to divide into two equal sized daughter cells unless yolk is unevenly distributed.

d) Free sides of the blastomeres tend to become rounded.


Related Discussions:- Principles governing cleavage

Emulsion products, E m u l s io n products Ground meat products s...

E m u l s io n products Ground meat products such as sausages, patties and luncheon meats are emulsion based products and their quality depends upon the ability of lean m

Tertiary prevention- preventive strategies for food allergy, Define Tertiar...

Define Tertiary Prevention- preventive strategies for food allergy? Tertiary Prevention: Targets the control of factors that cause symptoms. This strategy would be appropriate

Procedures for diagnosis - monoclonal antibodies, M o n o c ...

M o n o c l o n a l antibodies: Hybridoma technology for production of monoclonal antibodies is one of the most important advancements in the f

Metazoan branches, Metazoan Branches The Kingdom Animalia comprises al...

Metazoan Branches The Kingdom Animalia comprises all the multicellular animals (metazoans). These are divided into three branches: Mesozoa Parazoa Eumetazoa

What is mdrtb, What is MDRTB MDRTB - For patients with known exposure t...

What is MDRTB MDRTB - For patients with known exposure to multi-drug resistant TB (MDRTB) and a high risk of developing active TB, there are no data-based recommendations. Regi

Zoology, differences of plants and animals in terms of form and structure?

differences of plants and animals in terms of form and structure?

What is counselling for diabetic patient, Q. What is counselling for diabet...

Q. What is counselling for diabetic patient? The word counselling has been understood in a number of ways. Counselling can be understood as "consultation, mutual interchange

Define protein requirements during sepsis, Define Protein Requirements duri...

Define Protein Requirements during Sepsis? Adequate amount of protein is required by these patients to improve immunity against infections, promote recovery, spare lean body ma

Darwins theory of natural selection, Darwins theory of natural selection is...

Darwins theory of natural selection is considered a paradigm shift--a theory that has wide-ranging effects. Describe some of the advantages that this theory offered scientists once

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