Consider the following statements:

A digital signature is:

1. An electronic record that identifies the certifying authority issuing it.

2. Used to serve as a proof of identity of an individual to access information or server on the Internet.

3. An electronic method of signing an electronic document and ensuring that the original content is unchanged.

Which of the statements given above is/are correct?

In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices?

1. Location/identification of a person.

2. Sleep monitoring of a person.

3. Assisting the hearing impaired person.

Select the correct answer by using the codes given below.

‘RNA interference (RNA)’ technology has gained popularity in the last few years. Why?

1. It is used in developing gene-silencing therapies.

2. It can be used in developing therapies for the treatment of cancer.

3. It can be used to develop hormone replacement therapies.

4. It can be used to produce crop plants that are resistant to viral pathogens.

Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India?

1. Genetic predisposition of some people.

2. Taking incorrect doses of antibiotics to cure diseases.

3. Using antibiotics in livestock farming.

4. Multiple chronic diseases in some people.

Select the correct answer by using the codes given below.