Question

What is not useful as a possible DNA probe?

पर्याय

• A protein that binds to DNA specifically

• A sequence of mRNA that binds to a particular site on the DNA

• DNA produced by a DNA synthesizer to have a particular base sequence

• cDNA that is complementary to a particular region of the genomic DNA

Answer 1

A protein that binds to DNA specifically

Explanation:

DNA probes are typically nucleic acid sequences that can hybridize or bind specifically to complementary DNA or RNA sequences. Useful DNA probes include sequences of mRNA that can bind to particular DNA sites, synthetic DNA sequences produced by DNA synthesizers with specific base sequences, and cDNA complementary to genomic DNA regions. Proteins, even if they bind DNA specifically, are not used as DNA probes because DNA probes rely on complementary base pairing to detect specific DNA sequences.