46 .Which among the given features of DNA makes it uniquely suited to store and transmit genetic information from generation to generation? \",Double helix
A.  Complementary of the two strands""
B.  Number of base-pairs per turn
C. 
D.  1
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47 .Triple antigen vaccine is given to children to protect them against
A.  whooping cough
B.  tuberculosis
C.  polio
D.  contagious diseases
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48 .With reference to the latest developments in stem cell research, consider the following statements. 1. The only source of human stem cells are the embryos at blastocyst stage. 2. The stem cells can be derived without causing destruction to blastocysts. 3. The stem cells can regenerate themselves in vitro virtually forever. 4. Indian research centres also created a few cell lines, which can be developed into many types. Which of these statements are right?
A.  1, 2 and 4
B.  3 and 4
C.  1, 2 and 3
D.  1, 2 and 4
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49 .Which among the given is the 2nd largest source of global energy -
A.  Renewable Energy
B.  Fossil fuel
C.  Nuclear Energy
D.  None of these
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50 .Anaemia occurs due to the deficiency of
A.  niacin
B.  folic acid
C.  riboflavin
D.  thiamine
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51 .The mass of a star is two times the mass of the Sun. How it will come to an end -
A.  Red Giant
B.  Black hole
C.  White Dwarf
D.  Neutron Star
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52 .The highest concentration of urea is found in
A.  Hepatic portal vein
B.  Hepatic vein
C.  Dorsal aorta
D.  Renal vein
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53 .What is the chemical name of vinegar -
A.  Pyruvic acid
B.  Citric acid
C.  Malic acid
D.  Acetic acid
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54 .Vector of Kala-azar is:
A.  Anopheles mosquito
B.  Culex mosquito
C.  Sand fly
D.  Tse-Tsefly
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55 .Which among the given statements is/are right? 1. Viruses lack enzymes necessary for the generation of energy. 2. Viruses can be cultured in any synthetic medium. 3. Viruses are transmitted from one organism to another by biological vectors only. Select the right answer using the codesgiven below
A.  1 and 3
B.  Only 1
C.  All of the above
D.  Only 2
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56 .The longest bone in the human body is:
A.  Femur
B.  Humerus
C.  Ulna
D.  Tibia
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57 .Which of the following one of the following is the tallest bird -
A.  Peacock
B.  Emu
C.  Penguin
D.  Ostrich
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58 .An organism which can monitor air pollution is
A.  Fungi
B.  Lichen
C.  Algae
D.  Bacteria
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59 .Growth of the baby in the uterus is found using
A.  Gamma rays
B.  X-rays
C.  Ultra sound
D.  Ultraviolet rays
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60 .Honey that has high concentration of sugar does not decay as
A.  Bacteria cannot survive in an active state as it is totally deprived of oxygen
B.  It contains natural antioxidant that prevents bacterial attack
C.  None of these
D.  Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out
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