General Knowledge MCQs (page 31 of 61)
Famous people, inventions, sports, world records, currencies and well-known facts about Pakistan and the world.
1,204 questions. Select an option to check your answer, or open "Show answer". Showing 601–620.
- 601.
Radioactivity was discovered by:
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Answer: D. Henri Becquerel
He discovered it in uranium salts in 1896.
- 602.
The laws of motion were given by:
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Answer: D. Isaac Newton
He published them in Principia (1687).
- 603.
The Theory of Relativity was proposed by:
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Answer: B. Albert Einstein
Special relativity appeared in 1905.
- 604.
The double-helix structure of DNA was described by:
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Answer: B. Watson and Crick
They published it in 1953.
- 605.
Who is known as the "Father of Medicine"?
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Answer: D. Hippocrates
The Hippocratic Oath is named after him.
- 606.
The smallpox vaccine was developed by:
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Answer: A. Edward Jenner
He used cowpox material in 1796.
- 607.
The first effective polio vaccine was developed by:
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Answer: A. Jonas Salk
The injected vaccine was introduced in 1955.
- 608.
Penicillin was discovered by:
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Answer: A. Alexander Fleming
He discovered it in 1928.
- 609.
Haemoglobin contains which metal?
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Answer: C. Iron
Iron binds oxygen in the blood.
- 610.
Red blood cells are produced in the:
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Answer: B. Bone marrow
Adult RBCs are made in red bone marrow.
- 611.
The normal human body temperature is about:
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Answer: B. 37°C
This equals about 98.6°F.
- 612.
Insulin is produced by the:
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Answer: A. Pancreas
Beta cells in the islets of Langerhans secrete it.
- 613.
The universal recipient blood group is:
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Answer: D. AB positive
It has no antibodies against A, B or Rh antigens.
- 614.
The universal donor blood group is:
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Answer: C. O negative
Its red cells lack A, B and Rh antigens.
- 615.
The longest bone in the human body is:
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Answer: D. Femur
It is the thigh bone.
- 616.
The smallest bone in the human body is:
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Answer: B. Stapes
It is located in the middle ear.
- 617.
An adult human body has how many bones?
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Answer: B. 206
Newborns have about 300 bones, many of which fuse.
- 618.
The largest gland in the human body is:
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Answer: D. Liver
It produces bile and stores glycogen.
- 619.
The largest organ of the human body is:
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Answer: A. Skin
It protects the body from the environment.
- 620.
Vitamin K is essential for:
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Answer: B. Blood clotting
Its deficiency causes excessive bleeding.