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 Biology Questions

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Q:

Some niacin is formed in the body from

A) Liver B) Skin
C) Appendix D) None of the above
 
Answer & Explanation Answer: A) Liver

Explanation:

Niacin is the name for vitamin(B3).

 

Liver can produce small amount of niacin from tryptophan.

 

To produce 1 mg of niacin we require 60 mg of tryptophan.

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Q:

The right portion of human heart receives ______ blood.

A) pure B) impure
C) mixed D) none
 
Answer & Explanation Answer: B) impure

Explanation:
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Q:

Smallest cell in human body is

A) Ovum B) Nerve cell
C) Sperm D) None of the above
 
Answer & Explanation Answer: C) Sperm

Explanation:
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Q:

Which body part will be effected with the disease leprosy?

A) blood B) legs
C) skin D) brain
 
Answer & Explanation Answer: C) skin

Explanation:

Leprosy is the disease which effects skin.

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Q:

Webbed neck is a characteristic of

A) Down's syndrome B) Turner's syndrome
C) Klinefelter's syndrome D) Cri-du-chat syndrome
 
Answer & Explanation Answer: B) Turner's syndrome

Explanation:
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Q:

The members of chlorophyceae are commonly called _________ algae.

A) Green B) Brown
C) Red D) Yellow
 
Answer & Explanation Answer: A) Green

Explanation:
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Q:

What is the full form of DNA?

A) Diribo nucleic acid B) Di nucleic acid
C) Dual nitrogen acid D) Deoxyribonucleic acid
 
Answer & Explanation Answer: D) Deoxyribonucleic acid

Explanation:
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Q:

Which among the following do NOT have a perfect pair of sex chromosomes?

A) Only men B) Only women
C) Both men and women D) Neither men nor women
 
Answer & Explanation Answer: A) Only men

Explanation:
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