| 1. | High mutation rate in coding regions |
| 2. | Identical sequences across individuals |
| 3. | High degree of polymorphism in non-coding regions |
| 4. | Constant length in all individuals |
| 1. | They are used to identify active sites of restriction enzymes within the genome. |
| 2. | VNTRs serve as molecular clocks to estimate the time of species divergence. |
| 3. | They are essential for the replication of viral RNA into the host genome. |
| 4. | VNTRs are used in DNA fingerprinting to identify genetic variability among individuals. |
Which of the following is transferred to nitrocellulose sheet from agar gel in a technique called Southern blotting?
1. RNA
2. Protein
3. DNA
4. Lipids
Satellite DNA is important because it :
| 1. | shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable form parents to children. |
| 2. | does not code for proteins and is same in all members of the population |
| 3. | codes for enzymes needed for DNA replication |
| 4. | codes for proteins needed in cell cycle. |
Satellite DNA is classified into many types on the basis of ?
1. Base composition.
2. Length of segment.
3. Number of repetitive units.
4. All the above.
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
Alec Jeffrey’s name is associated with
1. DNA sequencing
2. DNA fingerprinting
3. RNA sequencing
4. Gene cloning
Which of the following step is incorrect with respect to DNA fingerprinting?
| 1. | Separation of DNA fragments by electrophoresis |
| 2. | Isolation of DNA |
| 3. | Hybridisation using labeled VNTR probe |
| 4. | Detection of hybridized DNA fragments by ultracentrifugation |