Any mistakes during DNA replication by the enzyme would result into:
1. | Cancer | 2. | Apoptosis |
3. | Cell fragmentation | 4. | Mutation |
Transcription and translation can be coupled in:
1. | Bacteria | 2. | Yeast |
3. | Plants | 4. | Animals |
Which of the following codons has a dual role in the genetic code?
1. | AUG | 2. | GUG |
3. | CUG | 4. | UUG |
DNA-dependent RNA polymerase catalyzes polymerization in:
1. | Only in 3’ – 5’ direction |
2. | Only in 5’ – 3’ direction |
3. | In both directions |
4. | In neither directions |
Which of the following helps in the termination of transcription?
1. | Sigma factor | 2. | Translocase |
3. | Ubiquitin | 4. | Rho factor |
Which of the following is true for both transcription and DNA replication?
1. | The principle of complementarity governs the processes |
2. | Only if the two strands act as a template |
3. | Only a segment of both strands is involved |
4. | Adenine base pairs with thymine |
The structure of the ribosome is made of:
1. | rRNA and Proteins |
2. | rRNA and Polysaccharides |
3. | mRNA, rRNA and tRNA |
4. | RNA, DNA and Proteins |
Who proposed a semi-conservative mode of replication for DNA?
1. | Watson and Crick | 2. | Meselson and Stahl |
3. | Hershey and Chase | 4. | Beadle and Tatum |
Which of the following acts as the substrate and provides energy for DNA replication?
1. | Dideoxyribonucleoside triphospahtes |
2. | Ribonucleoside triphosphates |
3. | Deoxyribonucleoside triphospahtes |
4. | Deoxyribonucleotide triphosphates |