Biology MCQs
Biology MCQs cover cell biology, botany, zoology, genetics, microbiology, and physiology. Ideal for MDCAT, CSS, PMS, FPSC, and PPSC exams, they boost conceptual clarity and analytical skills for academic and competitive success.
Q: What is the genetic material in most living organisms?
A) RNA
B) Protein
C) Lipid
D) DNA
✅ Correct Answer: D
Explanation: DNA stores genetic information in living cells.
Q: Which blood cells help in fighting infection?
A) Plasma
B) Red blood cells
C) White blood cells
D) Platelets
✅ Correct Answer: C
Explanation: White blood cells (leukocytes) defend the body against infection.
Q: Which vitamin is produced in the skin in sunlight?
A) Vitamin A
B) Vitamin B12
C) Vitamin D
D) Vitamin C
✅ Correct Answer: C
Explanation: Vitamin D is synthesized in the skin on exposure to UV rays.
Q: What pigment gives plants their green color?
A) Chlorophyll
B) Melanin
C) Carotene
D) Hemoglobin
✅ Correct Answer: A
Explanation: Chlorophyll absorbs light for photosynthesis and appears green.
Q: What type of blood is known as the universal donor?
A) A
B) AB
C) B
D) O
✅ Correct Answer: D
Explanation: Type O blood can be donated to all blood groups.