Q. No.The technique of DNA fingerprinting was developed initially by:
1. Alfred Sturtevant 2. Alec Jeffrys 3. Thomas Cech 4. Fire and Mello
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Southern blotting is transfer to nitrocellulose sheet from agar gel of:
| 1. | RNA | 2. | Proteins |
| 3. | DNA | 4. | Lipids |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The size of VNTR varies from:
1. 0.1 to 20 kb
2. 0.1 to 2.0 mb
3. 0.1 to 0.2 bp
4. 0.1 to 2.0 bp
1. Telomeric sequence
2. Multiple cloning site
3. Ori
4. Selectable marker
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Griffith co-injected the heat-killed S and live R strains of Pneumococcus bacterium into the mice and much to his surprise the mice developed pneumonia and died. He concluded that:
| I: | Live R was transformed into Live S strain as he was able to isolate Live S strain from the blood of the infected mice. |
| II: | Bacterial transformation is a stable and heritable change as the culture of bacteria isolated from dead mice was unable to infect other mice. |
| 1. | Both I and II are correct |
| 2. | Only I is correct |
| 3. | Only II is correct |
| 4. | Both I and II are incorrect |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The radius of the double helix of B-DNA [Watson and Crick model] is approximately:
| 1. | 1.0 nm | 2. | 2.0 nm |
| 3. | 0.34 nm | 4. | 3.4 nm |
An RNA primer is essential for DNA synthesis carried out by DNA polymerase III. This is because, to synthesize DNA, DNA polymerase III requires:
| 1. | A free 3’ – PO4 group |
| 2. | A free 5’ – PO4 group |
| 3. | A free 3’ – OH group |
| 4. | A free 5’ – OH group |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following possible modes of replication was eliminated by Meselson and Stahl based on the finding after one generation of replication of the bacterium?
| 1. | Dispersive | 2. | Semi-conservative |
| 3. | Conservative | 4. | Both 1 and 3 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The mRNA codon GUG codes for:
| 1. | Valine | 2. | Glutamic acid |
| 3. | Tryptophan | 4. | Formylated methionine |
What defines the template and coding strand of DNA for transcription?
1. Presence of the structural gene in a transcription unit
2. The core RNA polymerase enzyme
3. Presence of the promoter in a transcription unit
4. Presence of 3’ – 5’ TAC codon on the DNA template
© 2025 GoodEd Technologies Pvt. Ltd.