Laws of cleavage -1 sacs law - according this law during, Ask an Expert

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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.

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Category:- Biology
Reference No.:- M9510180

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