In genetic fingerprinting, the 'probe' refers to ….

Options

A. A radioactively labelled single stranded DNA molecule
B. A radioactively labelled single stranded RNA molecule
C. A radioactively labelled double stranded RNA molecule
D. A radioactively labelled double stranded DNA molecule

Answer

A

Explanation

In molecular biology, a hybridization probe is a fragment of DNA of variable length, single stranded which can be radioactively labelled. It can then be used in DNA samples to detect the presence of nucleotide sequences.