In a DNA molecule adenine of one strand base pairs with ______ on the other strand
1. Guanine
2. Thymine
3. Cytosine
4. Both (1) & (2)
 

Subtopic:  DNA Double Helix |
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The genetic material of Tobacco mosaic virus is 
1. RNA 
2. DNA
3. Protein
4. NADPH
Subtopic:  DNA vs RNA as Genetic Material |
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DNA polymerases catalyse polymerisation of / in 
1. Ribonucleotides 
2. 5' → 3' direction
3. 3' → 5' direction 
4. Deoxyribonucleosides
Subtopic:  DNA Replication |
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In the 5' end of a DNA molecule
1. The fifth carbon of pyrimidine base is free
2. The fifth carbon of purine base is free
3. The fifth carbon of pentose sugar is free
4. Both (1) & (3)
Subtopic:  The DNA |
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In DNA, uracil is replaced by
1. Thymine 
2. Thiamine
3. Cytosine
4. Adenine
 
Subtopic:  The DNA |
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During DNA replication which of the following does not act as substrates?
1. dATP
2. dCTP
3. dUTP
4. dGTP
 65%
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Out of the two strands of DNA one is carrying genetic information for transcription and it is called 
1. Coding strand 
2. Non template strand 
3. Sense strand 
4. Template strand 
Subtopic:  Transcription |
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Find out the incorrect match. 
1. UUU  -  Phenylalanine
2. UAG  -  Sense condon
3. GUG  -  Valine
4. UGG  -  Tryptophan 
Subtopic:  Genetic Code |
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In bacteria, catalytic RNA is found in
1. 60 S subunit of ribosome
2. 50 S subunit of ribosome
3. 30 S subunit of ribosome
4. 40 S subunit of ribosome
Subtopic:  Transcription |
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Read the given statements
Statement-A : If the total amount of adenine in eukaryotic ds DNA is 30% then total pyrimidine content is 50%.
Statement-B : Nitrogenous bases do not form part of backbone in DNA. 
Select the correct option.
1. Statement A is incorrect 
2. Statement B is incorrect
3. Both statement A & B are incorrect 
4. Both statement A & B are correct
 
Subtopic:  DNA Double Helix |
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