Question

9. Usually, how many ways bacteria becomes drug resistance-explain. 10. What is Kirby-Bauer test and what it is used for? Explain the process. 11. Why animal viruses have envelope, explain with example. 12. What is the basic difference between infection by phage and an animal virus, explain? 13. Can we culture virus like we do with bacteria in media? What are the ways virus is cultured-explain? 14. Why it is difficult to design drugs for virus? Name two anti-virus drugs and explain how they work. 15. What is prion? What it causes, explain.

Answer 1

1) Antibiotics are used to treat bacterial diesesdi which kills the bacteria bad stops them from division.But antibuoanti are used for so many years and use of frequency is high due to this some bacteria become antibiotic resistance and adapted to fight against them.This is called as antibiotic resistance.

There are two ways in which the bacteria become drug resistant.

A) Due to the mutation which occur in the bacteria during replication will give them resistance against antibiotics.

B)Horzotal gene transfer is also the reason for resistance against antibiotics.

But the main cause is some people use Antibiotics frequently and some bacteria which are resistant against the Antibiotics lives and proliferate.