2 years ago

Which one of the following is NOT a characteristic of DNA Vaccine?

Biology

1 answer:

Stolb23 [73]2 years ago

8 0

Answer:

Option A. It is produced in vitro

Explanation:

The technique of DNA vaccine involves transfer of genetically engineered or modified form of DNA into body directly with the help of injection. The DNA codes for protein, that protein is antigen and thus provides immunity.

The DNA vaccine can be produced at a low cost and easy to purify. The DNA vaccines are produced in-vivo not in-vitro, so Option A is not a characteristic of DNA Vaccine.

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This part is used to bring the specimen into sharp focus. This part causes a very small up and down motion when used.

Mekhanik [1.2K]

Answer:

Fine focus.

Explanation:

If you're referencing a microscope, then it would be fine focus. Coarse focus is a basic focus used to properly see a specimen, while fine focus enhance clarity and precision. To use both, you have to gently twist a knob until you can see the specimen at a desired clarity.

Here's a reference image if you need it, it's labeled all the parts of a microscope.