Question

Match the following columns and select the correct option.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{(a)}& \text{cry}\text{gene}& \left(i\right)& \text{A single stranded DNA or RNA, tagged with a radioactive molecule}\\ \text{(b)}& \text{Adenosine deaminase}& \text{(ii)}& \text{Isolated from}\text{Bacillus thuringiensis}\\ \text{(c)}& \text{RNA interference}& \text{(iii)}& \text{Enzyme which is crucial for the immune system to function}\\ \text{(d)}& \text{Probe}& \text{(iv)}& \text{Involves silencing of a specific mRNA}\end{array}$

• A. (a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)
• B. (a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)
• C. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
• D. (a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

Answer 1

The correct option is D (a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

cry gene codes Bt toxin and is isolated from B. thuringiensis. ADA deficiency leads to severe combined immunodeficiency and can be cured by gene therapy. RNAi is present in all eukaryotic organisms as a method of cellular defense.