NEET 2012 · Class 12

Biotechnology and its Applications

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

  1. (A)vector
  2. (B)selectable marker
  3. (C)plasmid
  4. (D)probe

The NCERT line that answers it

Verbatim line

A single stranded DNA or RNA, tagged with a radioactive molecule (probe) is allowed to hybridise to its complementary DNA in a clone of cells followed by detection using autoradiography.

Chapter
Biotechnology and its Applications
Section
10.2.3 Molecular Diagnosis
Page
6
Words matched
30 of 30

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly defines 'a single stranded DNA or RNA, tagged with a radioactive molecule' as a 'probe', which directly matches the MCQ definition and distinguishes it from the other options.

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