NEET 2012 Biology question

A single strand of nucleic acid tagged with a radioactive molecule is called

(1)ProbeCorrect
(2)Vector
(3)Selectable marker
(4)Plasmid

Answer: (1)

Solution

A probe is a single-stranded DNA or RNA molecule labelled with a radioactive isotope (or a fluorescent tag). It hybridises with its complementary sequence in a mixture of nucleic acids, so that the target gene can be detected, for example by

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-091165