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
Answer –C. Deficiencies of micronutrients and vitamins

142. DOTS is a treatment given to patients suffering from___ [SSC CGL Tier-I (CBE) 2016]
A. Polio
C. Hepatitis
D. Tuberculosis
Answer –D. Tuberculosis

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
Answer –A. Convention on Biological Diversity

144. Name the gas used in preparation of bleaching powder___ [SSC CGL Tier-I (CBE) 2016]
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Chlorine
Answer –D. Chlorine

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
Answer –C. number of chromosomes

146. Magnesium is a constituent metal of: [SSC CGL Tier-I (CBE) 2016]
A. Chlorophyll molecule
C. Mitochondria
D. Ribosomes
Answer –A. Chlorophyll molecule

147. The largest artery in human body is: [SSC CGL Tier-I (CBE) 2016]
A. Aorta
B. Capillary
C. Vena cava
D. Pulmonary vein
Answer –A. Aorta

148. The substrate of photorespiration is: [SSC CGL Tier-I (CBE) 2016]
A. Fructose
B. Pyruvic acid
C. Glycolate
D. Glucose
Answer –C. Glycolate

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
Answer –C. Bio remediation

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
Answer –C. T cells in blood

Leave a comment