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76)Most abundant RNA of the cell is | |||
r-RNA | t-RNA | ||
t-RNA-threonine | m-RNA | ||
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77)Which RNA delivers the correct amino acid for protein synthesis? | |||
hn-RNA | t-RNA | ||
m-RNA | r-RNA | ||
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78)In which of the following anticordon occurs? | |||
DNA | m-RNA | ||
t-RNA | r-RNA | ||
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79)Nucleic acids were first discovered by | |||
Flemming | Altmann | ||
Koch | Meischer | ||
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80)Which of the following nitrogenous base is not found in RNA? | |||
Uracil | Cytosine | ||
Adenine | Thymine | ||
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81)RNA is polymer of | |||
Deoxyribonucleotides | Ribonucleotides | ||
Deoxyribonucleosides | Ribonucleosides | ||
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82)t - RNA constitutes about | |||
15% of the total RNA | 1 - 3% of the total RNA | ||
70-80% of the total RNA | 5% of the total RNA | ||
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83)The two strands of DNA are coiled around | |||
Differently | Each other | ||
Different axis | A common axis | ||
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84)With which of the following adenine of DNA pairs? | |||
Thymine | Uracil | ||
Guanine | Cytosine | ||
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85)Distance between two strands of DNA is | |||
3.4 Å | 34 Å | ||
20 Å | 340 Å | ||
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86)The denaturation of DNA can take place due to | |||
High temperature | High pH | ||
Low pH | All of these | ||
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87)The two strands od DNA are held together by bonds of | |||
Oxygen | Hydrogen | ||
Nitrogen | Carbon | ||
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88)The low melting area of DNA is | |||
A - U base pairs | G - C base pairs | ||
A - T base pairs | Both (b) and (c) | ||
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89)Single stranded DNA is found in | |||
Bacteriophage Φ x 174 | Reo virus | ||
Retro virus | Wound tumour virus | ||
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90)The term enzyme was coined by | |||
Buchner | Boveri | ||
Kuhne | De Duve | ||
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