Statement A: | Agarose gel electrophoresis is employed to separate the fragments of DNA obtained after restriction enzyme digestion. |
Statement B: | DNA is a negatively charged molecule and moves toward the cathode. |
Assertion (A): | In vitro fertilisation, leading to a 'test-tube' baby, is included under the umbrella of biotechnology |
Reason (R): | The definition of biotechnology, given by EFB encompasses only modern molecular biotechnology view |
1. | (A) is true but (R) is false |
2. | (A) is false but (R) is true |
3. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
4. | Both (A) and (R) are true but (R) is the not the correct explanation of (A) |
Statement A: | Plasmid is a double stranded structure. |
Statement B: | Plasmid is extra chromosomal genetic material in bacteria. |
(a) | A gene whose expression helps to identify transformed cell is known as a selectable marker. |
(b) | BOD incubator is essentially required for growing microbes on a large scale, for industrial production of enzymes. |
(c) | For transformation, micro-particles coated with DNA to be bombarbed using gene gun are made up of gold or tungsten. |
Assertion: | E. coli having pBR322 with DNA insert at BamHI site cannot grow in medium containing tetracycline. |
Reason: | Recognition site for Bam HI is present in tetR region of pBR322. |
1. | Both assertion and reason are true, and the reason is the correct explanation of the assertion. |
2. | Both assertion and reason are true, but the reason is not the correct explanation of the assertion. |
3. | Assertion is true but reason is false. |
4. | Both assertion and reason are false. |