Biology 24
116. Which one of the following is not a hereditary disease in a man?
(A) Alzheimer's disease
(B) Down's Syndrome
(C) Haemophilia
(D) Colour blindness
(A) Alzheimer's disease
(B) Down's Syndrome
(C) Haemophilia
(D) Colour blindness
Correct Answer: [A] Alzheimer's disease.
117. What is a bacteriophage?
(A) A fungus causing disease
(B) A phagocytic protozoa
(C) A virus
(D) A bacterium growing in an artificial nutrient medium
(A) A fungus causing disease
(B) A phagocytic protozoa
(C) A virus
(D) A bacterium growing in an artificial nutrient medium
Correct Answer: [C] A virus.
118. Cardiac muscles do not undergo fatigue, because
(A) Having more actins
(B) Having more myosin
(C) Interconnection of cells by intercalated disc
(D) Having numerous mitochondria
(A) Having more actins
(B) Having more myosin
(C) Interconnection of cells by intercalated disc
(D) Having numerous mitochondria
Correct Answer: [D] Having numerous mitochondria.
119. Ribosomes play a significant role in
(A) Lipid synthesis
(B) Respiration
(C) Photosynthesis
(D) Protein synthesis
(A) Lipid synthesis
(B) Respiration
(C) Photosynthesis
(D) Protein synthesis
Correct Answer: [D] Protein synthesis.
120. Pitcher plant is
(A) Insectivorous
(B) Actinomorphic
(C) Heterotrophic
(D) Autotrophic
(A) Insectivorous
(B) Actinomorphic
(C) Heterotrophic
(D) Autotrophic
Correct Answer: [A] Insectivorous.
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