Biology Questions

Q:

Which type of pathogen causes the water-borne disease Typhoid fever?

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

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Q:

Vocal chords in women are _______________ than vocal chords in men.

A) 5mm shorter B) 15mm shorter
C) 5mm longer D) 15mm longer
 
Answer & Explanation Answer: A) 5mm shorter

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Q:

Among plants, three different genera Solanum, Petunia and Datura are placed in which family?

A) Cancidae B) Solanaceae
C) Felis D) Felidae
 
Answer & Explanation Answer: B) Solanaceae

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Q:

Which of the following relation is true regarding the amounts of genetic material contributed by the father and mother to the child?

A) Father >> Mother B) Father << Mother
C) Father = Mother D) No relation can be determined
 
Answer & Explanation Answer: C) Father = Mother

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Q:

Why do the desert plants take up the carbon dioxide for photosynthesis at night?

A) To prevent water loss B) To enhance carbon absorption
C) To release excess oxygen D) No option is correct
 
Answer & Explanation Answer: A) To prevent water loss

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Q:

A healthy adult man has, on an average, ________ (in millions) of RBCs mm-3 of blood.

A) 5 - 5.5 B) 4 - 4.5
C) 3 - 3.5 D) 6 - 6.5
 
Answer & Explanation Answer: A) 5 - 5.5

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Q:

Which of the following is not a plant hormone?

A) Gibberellic B) Auxins
C) Cytokinins D) Thyroxin
 
Answer & Explanation Answer: D) Thyroxin

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Q:

___________ being a higher category, is the assemblage of families which exhibit a few similar characters.

A) Order B) Species
C) Genus D) Class
 
Answer & Explanation Answer: A) Order

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