DNA fingerprinting is related to:
1. | Molecular analysis of profiles of DNA samples |
2. | Analysis of DNA samples using imprinting devices |
3. | Techniques used for molecular analysis of different specimens of DNA |
4. | Techniques used in the identification of fingerprints of different persons |
A nutritionally wild-type organism that does not require additional biochemicals is:
1. | Prototroph | 2. | Auxotroph |
3. | Phenotype | 4. | Autotroph |
What is it that forms the basis of DNA Fingerprinting?
1. | The relative proportions of purines and pyrimidines in DNA. |
2. | The relative difference in the DNA occurrence in blood, skin, and saliva. |
3. | The relative amount of DNA in the ridges and grooves of the fingerprints. |
4. | Satellite DNA occurring as highly repeated short DNA segments |
Select the correct option:
The direction of RNA synthesis |
The direction of reading of the template DNA strand |
|
1. |
5' - 3' |
3' - 5' |
2. |
3' - 5' |
5' - 3' |
3. |
5' - 3' |
5' - 3' |
4. |
3' - 5' |
3' - 5' |
Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
1. | DNA -DNA hybridization | 2. | Polymerase chain reaction |
3. | Zinc finger analysis | 4. | Restriction enzymes |
Taylor conducted experiments to prove the semiconservative mode of chromosome replication on:
1. | E. coli | 2. | Vinca rosea |
3. | Vicia faba | 4. | Drosophila melanogaster |
If there are 999 bases in RNA that code for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1. | 1 | 2. | 11 |
3. | 33 | 4. | 333 |
Identifying all the genes in the genome that are transcribed into RNA is called:
1. | Expressed Sequence Tag | 2. | Sequence Annotation |
3. | Inverse PCR | 4. | Retrotransposition |
For the multiplication of any alien piece of DNA in an organism it needs to be a part of a chromosome that has a specific:
1. | Telomeric sequence | 2. | Multiple cloning site |
3. | Ori | 4. | Selectable marker |
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 |