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1726. SA node in the heart is also known as

A. Pace maker

B. Pace settler

C. Pace regulator

D. Pace coordinator

Explanation:

1727. Which of the following combinations of chromosomes is present in males ?

A. XX

B. XXX

C. XY

D. XYX

Explanation:

1728. Sodium metal is kept under

A. water

B. alcohol

C. petrol

D. kerosene

Explanation:

1729. Which of the following glands in human body is popularly called Adams apple ?

A. Adrenal

B. Pituitary

C. Thyroid

D. Thymus

Explanation:

1730. If father and mother are possessing Rh + ve and Rh - ve respectively, their chlidren will have the blood group with

A. Rh + ve

B. Rh - ve

C. Rh neutral

D. None of these

Explanation:

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