4
Q:

The group of crop plant that are vegetatively propagated is:

 

A) potato,papaya and banana B) Sugarcane,potato and banana
C) groundnut,drumstick and cashew nut D) Onion,coriander and lime

Answer:   B) Sugarcane,potato and banana



Explanation:
Subject: Biology
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Q:

Who discovered the ABO blood group system?

A) Karl Koller B) Maurice Hilleman
C) Karl Landsteiner D) Edward Jenner
 
Answer & Explanation Answer: C) Karl Landsteiner

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Q:

Which of the following is a good source of Vitamin A?

A) Cabbage B) Carrot
C) Regular Potato D) Strawberry
 
Answer & Explanation Answer: B) Carrot

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1 644
Q:

The effects of any drug depend on

 

 

A) The amount taken at one time B) The circumstances under which the drug is taken such as the simultaneous use of alcohol or other drugs, etc.
C) How the drug is consumed D) All the above
 
Answer & Explanation Answer: D) All the above

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Q:

The specificity of an antibody is due to

A) the variable portions of the H and L chains B) the L chains
C) its valence D) the H chains
 
Answer & Explanation Answer: A) the variable portions of the H and L chains

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Q:

In most green plants, chloroplasts are

 

A) concentrated in a zone of leaf tissue called the mesophyll B) concentrated in a portion of the leaf called the stroma
C) found throughout the leaf tissue D) concentrated in the stomata
 
Answer & Explanation Answer: A) concentrated in a zone of leaf tissue called the mesophyll

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Q:

Molecular clocks are based on the idea that _____.

A) On average neutral mutations arise at a constant rate B) Directional selection occurs at a constant rate
C) Mutations occur once every generation D) Molecules resonate at a certain frequency that can be measured
 
Answer & Explanation Answer: C) Mutations occur once every generation

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1 773
Q:

Fats, oils and cholesterol are all types of what?

 

 

A) Cell membranes B) Lipids
C) Hormones D) Fatty acids
 
Answer & Explanation Answer: D) Fatty acids

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Q:

How much salt is present in our body?

A) 1% B) 2%
C) 0.4% D) 0.6%
 
Answer & Explanation Answer: C) 0.4%

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