Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. In water treatment plant, use of chloramines ensures
a. taste and odour control
b. weed control in reservoirs
c. disinfection
d. removal of permanent hardness
Q. Which blood vessels have the smallest diameter?
a. Capillaries
b. Arterioles
c. Venules
d. Lymphatic
Q. Fermentation of milk to curd is due to
a. Mycobacterium
b. Staphylococcus
c. Lactobacillus
d. Yeast
Q. DOTS is a treatment given to patients suffering from –
a. Polio
b. AIDS
c. Hepatitis
d. Tuberculosis
Q. Magnesium is a constituent metal of –
a. Chlorophyll molecule
b. DNA
c. Mitochondria
d. Ribosomes
Q. Global warming is expected to result in
a. Increase in sea level
b. Change in crop pattern
c. Change in coastal line
d. All of these
Q. Which of the following foods gives instant energy to the athletes?
a. Cheese
b. Glucose
c. Ghee
d. Vitamins
Q. The chemical component that is invariably found in all viruses is
a. proteins
b. lipids
c. DNA
d. RNA
Q. The source of oxygen in atmosphere is due to –
a. Photosynthesis
b. Excretion
c. Nitrogen fixation
d. Respiration
Q. is called as 'Father of Genetics'.
a. Charles Darwin
b. Hugo de Vries
c. Gregor Johann Mendel
d. Jean Baptiste Lamarck
Q. Quinine is obtained from which of the following Plant?
a. Cinchona
b. Cocoa
c. Mulberry
d. Eucalyptus