1250+ Interesting Biology Questions Answers MCQ

Q:

Polio is caused by

A) Bacteria	B) Virus
C) Fungus	D) Protozoa

Answer & Explanation Answer: B) Virus

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Q:

Which of the following is secreted by the liver?

A) Glucose	B) Iodine
C) Cortisol	D) Bile

Answer & Explanation Answer: D) Bile

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Q:

The vocal cords in men are about _______ long.

A) 10mm	B) 20mm
C) 30mm	D) 40mm

Answer & Explanation Answer: B) 20mm

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Q:

Haemoglobin is an important component of _______.

A) white blood cells	B) red blood cells
C) plasma	D) all options are correct

Answer & Explanation Answer: B) red blood cells

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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:

Which blood group is universal donor?

A) O+	B) O–
C) AB–	D) AB+

Answer & Explanation Answer: B) O–

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Q:

In eukaryotic cells synthesis of RNA takes place in the _______________.

A) mitochondria	B) centrioles
C) ribosomes	D) nucleus

Answer & Explanation Answer: D) nucleus

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Q:

Which among the following have a perfect pair of sex chromosomes?

A) Only men	B) Only women
C) Both men and women	D) Neither men nor women

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