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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:

Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in

A) Recombinant DNA technology B) Monoclonal antibody production
C) Stemcell culture D) DNA fingerprinting
 
Answer & Explanation Answer: D) DNA fingerprinting

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE

1 19
Q:

Which type of Stem modification is seen in banana ?

A) Rhizome B) Stem tuber
C) Corn D) Bulb
 
Answer & Explanation Answer: A) Rhizome

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE

1 32
Q:

In which of the following mammals estrous cycle is absent ?

A) Rabbit B) Horse
C) Cow D) Monkey
 
Answer & Explanation Answer: D) Monkey

Explanation:
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Exam Prep: AIEEE , Bank Exams

1 26
Q:

There are approximately how many muscles in Human body ?

A) 206 B) 310
C) 554 D) 700
 
Answer & Explanation Answer: D) 700

Explanation:

Approximatey there are 700 muscles in Human body.

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Exam Prep: AIEEE , Bank Exams
Job Role: Bank Clerk

1 28
Q:

Lathyrism is caused by excess consumption of.......

A) Khesari Dal B) Mustard oil
C) Mushrooms D) Polished rice
 
Answer & Explanation Answer: A) Khesari Dal

Explanation:
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