Laws of cleavage, Biology

Assignment Help:

LAWS OF CLEAVAGE -

1. Sac's Law - According this law, during cleavage each blastomere to form similar blastomere. New cleavae always take place at the right angle of the first.

2. Pfluger's Law - According this during cleavage mitotic division formation of the spindle fibres proceeds in the region of less resistance.

3. Balfour's Law - According this the rate of cleavage is inversely proportionally to the amount of yolk in the egg.

Rate of cleavage = 1/amount of yolk

4. Hertwig's Law - According this the mitotic apparatus is formed in the centre of the animal pole.


Related Discussions:- Laws of cleavage

Explain the concepts of brain development, Explain the concepts of brain de...

Explain the concepts of brain development Two concepts that are especially critical to understanding brain development in the very young child are: Symbolic representati

Explain risk evaluation, Explain Risk  evaluation Risk  evaluation: Th...

Explain Risk  evaluation Risk  evaluation: The  risk  evaluation involves: A) identification of a food safety problem B) Establishment of a risk profile C) Ranking of

Culture medium - techniques of plant tissue culture, Culture Medium - Techn...

Culture Medium - Techniques of Plant Tissue Culture In nature green plants are capable of synthesizing organic compounds necessary for their growth and development from the mi

Define recommended dietary allowances for vitamin d, Define Recommended Die...

Define Recommended Dietary Allowances for Vitamin D? The recommendations of vitamin D are expressed as IU. 1 IU is defined as the activity contained in 0.025 mcg of cholecalci

Use of masks as personal protective equipment, Q. Use of Masks as personal ...

Q. Use of Masks as personal protective equipment? Masks are to be worn when procedures that result in aerosol production are performed. Protection from these masks only affords

Explain the treatment of vitamin a deficiency, Explain the Treatment of vit...

Explain the Treatment of vitamin A deficiency? All forms of vitamin A deficiency are treated with a massive oral dose of vitamin A in oil (200,000 IU), immediately after diagno

Definition of infective endocarditis, Infective endocarditis (IE) is a micr...

Infective endocarditis (IE) is a microbial infection of the endothelial surface of the heart. The characteristic lesion, the vegetation, is a variably sized amorphous mass of plate

Obtain half their genes from one parent, If children obtain half their gene...

If children obtain half their genes from one parent and half from the other parent, why aren't siblings identical?

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