Persons with “AB” blood group are called as “Universal recipients”. This is due to:

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As per ABO blood grouping system, the blood group of father is and child is Their respective genotype can be

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Figure shows schematic plan of blood circulation in humans with labels A to D, Identify the label and give its function/s.

Which one of the following animals has two separate circulatory pathways?

The diagram given here is the standard ECG of a normal person. The P- wave represents the:

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(A) (B) (C) (D)

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the
ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

Given below are two statements:
Statement I :
The coagulum is formed of network of threads called thrombins.
Statement II :
Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer from the options given below :

Reduction in pH of blood will:

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