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Q:

The enzyme that is necessary to bring about clotting of blood is 

A) peptidase B) amylase
C) lipase D) thrombokinase

Answer:   D) thrombokinase



Explanation:

The clotting of blood is a chain reaction initiated by the enzyme thrombokinase produced by the platelets. This causes prothrombin to be converted into thrombin in the presence of  ion. Thrombin combines with fibrinogen  to produce fibrin threads which entangles the corpuscles to form the clot.

Subject: Biology
Q:

What is scientific name of "Cotton"  ?

A) Azadhirachta Indica B) Phaseolies auicus
C) Gossypium Herbaceum D) Ficus Benghalensis
 
Answer & Explanation Answer: C) Gossypium Herbaceum

Explanation:
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Q:

Which one of the following vitamins is known as the anti sterile factor  ?

A) Ascorbic acid B) Riboflavin
C) Niacin D) Retinol
 
Answer & Explanation Answer: B) Riboflavin

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Q:

The sex of a newborn baby is determined by the chromosome inherited from

A) The Father B) The Mother
C) The Father's Father D) Both A & B
 
Answer & Explanation Answer: A) The Father

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Q:

Oath taken by medical graduates is given by-

A) Theophrastus B) Aristotle
C) Darwin D) Hippocrates
 
Answer & Explanation Answer: D) Hippocrates

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Q:

During rainy season wooden doors are difficult to open or closure because of  ?

A) Imbibition B) Plasmolysis
C) Diffusion D) Osmosis
 
Answer & Explanation Answer: A) Imbibition

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