Choose the incorrect statement: — Zoology | Mockzy

MediumZoologyBlood groups

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Persons with 'O' blood group have both anti-A and anti-B antibodies in plasma.

Serum is plasma without clotting factors.

Fibrinogens are needed for clotting or coagulation of blood.

Which of the following is responsible for the lub sound of the heart?

In 2012 a B+ person has donated blood to his aunt and it was a safe transfusion.

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In 2012 a B+ person has donated blood to his aunt and it was a safe transfusion. Now in 2015 his aun

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Assertion : If repeated checks of blood pressure of an individual is 140/90 (140 over 90) or higher,

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