SSC Biology Previous year questions Set 15

141. In bio fortification technique plant breeders use breeding to overcome___ [SSC CGL Tier-I (CBE) 2016]
A. Loss due to insect pests
B. Decrease in food production
C. Deficiencies of micronutrients and vitamins
D. Loss due to plant diseases
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142. DOTS is a treatment given to patients suffering from___ [SSC CGL Tier-I (CBE) 2016]
A. Polio
B. AIDS
C. Hepatitis
D. Tuberculosis
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143. Rio Summit is associated with ___ [SSC CGL Tier-I (CBE) 2016]
A. Convention on Biological Diversity
B. Green house gases
C. Ozone depletion
D. Wet lands
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144. Name the gas used in preparation of bleaching powder___ [SSC CGL Tier-I (CBE) 2016]
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Chlorine
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145. Polyploidy arises due to change in the___ [SSC CGL Tier-I (CBE) 2016]
A. number of chromatids
B. structure of genes
C. number of chromosomes
D. structure of chromosomes
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146. Magnesium is a constituent metal of: [SSC CGL Tier-I (CBE) 2016]
A. Chlorophyll molecule
B. DNA
C. Mitochondria
D. Ribosomes
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147. The largest artery in human body is: [SSC CGL Tier-I (CBE) 2016]
A. Aorta
B. Capillary
C. Vena cava
D. Pulmonary vein
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148. The substrate of photorespiration is: [SSC CGL Tier-I (CBE) 2016]
A. Fructose
B. Pyruvic acid
C. Glycolate
D. Glucose
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149. The waste management technique that involves the use of micro-organisms to remove or neutralize pollutants from contaminated site is called [SSC CGL Tier-I (CBE)2016]
A. Bio sensor
B. Bio magnification
C. Bio remediation
D. Bio concentration
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150. The virus of AIDS affects the growth of ______ [SSC CGL Tier-I (CBE) 2016]
A. Haemoglobin
B. RBCs in blood
C. T cells in blood
D. Grey cells in brain
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