Question 1

Bird flu is caused by

Accepted Answer

Bird flu, also known as Avian influenza, is caused by the H5N1 virus strain.

Question 2

Consider the following: 1. Bacteria 2. Fungi 3. Virus. Which of the above can be cultured in artificial/synthetic medium?

Accepted Answer

In the context of artificial medium culture, bacteria and fungi are capable of being cultured. In contrast, viruses necessitate living cells for their replication. This means that only options 1 and 2, or (a), can be cultured in artificial/synthetic medium.

Question 3

Consider the following: 1. Bacteria 2. Fungi 3. Virus. Which of the above can be cultured in artificial/synthetic medium?

Accepted Answer

Bacteria and fungi can be cultured in artificial or synthetic mediums for laboratory studies and research purposes. This is because they are living organisms that can grow and multiply in controlled environments outside their natural habitats. Viruses, on the other hand, require a host cell to replicate and cannot be cultured in artificial mediums alone.

Question 4

Which one of the following statements is correct?

Accepted Answer

Viroids are composed of single-stranded RNA molecules and do not have a protein coat.

Question 5

Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling point of water. 2. Some microorganisms can grow in environments with temperature below the freezing point of water. 3. Some microorganisms can grow in highly acidic environment with a pH below 3. How many of the above statements are correct?

Accepted Answer

Some microorganisms, known as extremophiles, have adapted to survive and grow in extreme environments. They can thrive in conditions such as high temperatures above the boiling point of water, low temperatures below the freezing point of water, and highly acidic environments with a pH below 3. Therefore, statements 1 and 3 are correct, making option (b) Only two the correct choice.

Microbiology — UPSC Previous Year Questions

Bird flu is caused by

Year-wise Distribution

Sample Questions

Microbiology — UPSC Previous Year Questions

Bird flu is caused by

Year-wise Distribution

Sample Questions