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Q:

Which type of pathogen causes the water­borne disease Salmonellosis?

A) Algal B) Parasitic
C) Bacterial D) Viral
 
Answer & Explanation Answer: C) Bacterial

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Q:

Which of the following is NOT a characteristic of dicotyledons plants?

A) These plants have a tap root B) These plants have reticulate venation
C) These plants have fibrous roots D) These plants have 2 cotyledons
 
Answer & Explanation Answer: C) These plants have fibrous roots

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Q:

Which of the following represents the CORRECT scheme of sub-groups at various levels in classification?

A) Kingdom → Phylum → Class → order → Family → Genus → Species B) Kingdom → Order → Class → Family → Genus → Species → Phylum
C) Kingdom → Phylum → Order → Genus → Species → Class → Family D) Phylum → Kingdom → Class → Order → Genus → Family → Species
 
Answer & Explanation Answer: A) Kingdom → Phylum → Class → order → Family → Genus → Species

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Q:

Which one is not the cause of kidney stone formation?

A) Drinking more water B) Diabetic mellitus
C) Taking nuts rich in oxalate D) Eating lot of stone forming foods
 
Answer & Explanation Answer: A) Drinking more water

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Q:

Because of base pairing in DNA, the percentage of

A) thymine molecules in DNA is about equal to the percentage of adenine molecules B) cytosine molecules in DNA is much greater than the percentage of guanine molecules
C) adenine molecules in DNA is about equal to the percentage of guanine molecules D) adenine molecules in DNA is much greater than the percentage of thymine molecules
 
Answer & Explanation Answer: A) thymine molecules in DNA is about equal to the percentage of adenine molecules

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Q:

How many chromosomes does a human cell contain?

A) 6 B) 26
C) 46 D) 66
 
Answer & Explanation Answer: C) 46

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Q:

The skin, the lining of the mouth, the lining of the blood vessels, lung alveoli and kidney tubules are all made of which type of tissue?

A) Epithelial tissue B) Connective tissue
C) Muscular tissue D) Nervous tissue
 
Answer & Explanation Answer: A) Epithelial tissue

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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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