Question

What is Antisense Technology?

• A. a) when a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
• B. b) production of soma clonal variants in tissue cultures
• C. c) a cell displaying foreign antigen used for synthesis of antigens
• D. d) RNA polymerase producing DNA

Answer 1

The correct option is A

a) when a piece of RNA that is complementary in sequence is used to stop expression of a specific gene

The correct option is a.

Explanation of the correct option :

1. Antisense technology is used to control the gene expression by using RNA molecule which is complementary to the DNA sequence.
2. This RNA molecule binds to the DNA and stops the translation process and ultimately stops protein synthesis.
3. So. this technology is used to stop the synthesis of a particular protein by targeting a specific gene.

Explanation of the incorrect option:

Option B:

1. Production of somo clonal variants is done by a Plant Tissue culture technique.
2. It is the technique where plants are grown in a laboratory under specified and predefined conditions.

Option C:

1. Here the cell is displaying antigens and antigens are already proteins hence they won't serve as a substrate for antisense.
2. Hence, antisense technology is not involved here.

Option D:

This is in the case of transcription, where RNA polymerase is used to produce DNA.