Question:

Which of the following is an incorrect statement?

T wave of normal ECG represent of depolarization of ventricle.

Eosinophilia is associated with allergic infection.

Blood group 'O' person have A and B antibodies in plasma.

RBCs contain carbonic anhydrase.

Solution:

The T wave represents the repolarization (or recovery) of the ventricles. The end of the T-wave marks the end of systole. The P-wave represents the electrical excitation (or depolarization) of the atria, which leads to the contraction of both the atria. The QRS complex represents the depolarization of the ventricles, which initiates the ventricular contraction. Thus, the correct answer is option A.