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

Intermediary metabolism, High Energy Compounds Primary need of the animal b...

High Energy Compounds Primary need of the animal body from the nutrients is energy. Free energy is the term used to denote the energy available to do useful work. Anabolic or synth

Define dietary goals in parkinson''s disease, Define Dietary Goals in Parki...

Define Dietary Goals in Parkinson's Disease? The main goals include: - Maintain desirable weight - Promote absorption of anti- Parkinson's drug levodopa - Lessen swall

Global Warming Prevention, Preventive steps for global warming :  Growing ...

Preventive steps for global warming :  Growing trees in vacant places. Growing social forests and protect them. Promoting abundant growth of phytoplankton plant species in marine

Define points to keep in mind while feeding a preschooler, Define Points to...

Define Points to Keep in Mind while feeding a preschooler? 1. Do not force-feed the child. 2. Children naturally eat a variety of foods. Their sensory-specific satiety ensur

Iodine test, what will happen to a plant kept in dark for 72 hours

what will happen to a plant kept in dark for 72 hours

What is a population, What is a population? A population is a set of in...

What is a population? A population is a set of individuals of the similar species found in a given place in a given time.

Define liposuction - surgical management for obesity, Define Liposuction - ...

Define Liposuction - surgical management for obesity? Liposuction is a cosmetic surgical procedure different from bariatric surgery. It involves aspiration of subcutaneous fat

Heart, about of moving blood

about of moving blood

List the four basic points of food exchange, List the four basic points to ...

List the four basic points to be kept in mind when advising food exchange. To develop the food exchange list points to keep in mind are: a) Group similar foods in one group.

Ancestral unicellular organism, Ancestral Unicellular Organism So far ...

Ancestral Unicellular Organism So far in this unit we have considered the characteristic of body designs that are shared by various animals and the different body plans that d

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