| 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 |