How was vaccines produced?

Answer the following question: How is a vaccine produced ?

What is the basic principle of vaccination ? How do vaccines prevent microbial infection. Name the organism from which hepatitis B vaccine is produced.

How are EM waves produced?

How is lac produced?

The vaccines produced using biotechnology are not thermo-stable.

State whether the statement is true or false. Correct the false statement : Vaccines produced with the help of biotechnology are thermo-stable.

How can one produce sound?

Answer in one sentence: How is the semen produced?

How are organic acids produced?

How is alcohol produced?