NEETZoologyBiotechnology - Principles and Processes
Read the following Assertion and Reason and choose the correct option. Assertion: All expression vectors are cloning vectors and vice versa. Reason: Expression vectors need regulatory machinery suitable for the host.
Options
- ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
- BBoth Assertion and Reason are true but the Reason is not the correct explanation of Assertion
- CAssertion is true but the Reason is false
- DBoth Assertion and Reason are false
Correct answer
D. Both Assertion and Reason are false
Step-by-step solution
plasmids and bacteriophages have the ability to replicate within bacterial cells independent of the control of chromosomal DNA. Bacteriophages because of their high number per cell, have very high copy numbers of their genome within the bacterial cells. Some plasmids may have only one or two copies per cell whereas others may have 15-100 copies per cell. Their numbers can go even higher.