NEET 2003 · Class 12

Molecular Basis of Inheritance

What does "lac" refer to in what we call the lac operon?

  1. (A)Lactose
  2. (B)Lactase
  3. (C)Lac insect
  4. (D)The number 1,00,000

The NCERT line that answers it

Verbatim line

*Lac* operon is the prototype operon in bacteria, which codes for genes responsible for metabolism of lactose.

Chapter
Molecular Basis of Inheritance
Section
5.10 DNA FINGERPRINTING
Page
29
Words matched
17 of 17

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

How this line gives the answer

6667, emb=0.6605, combined=0.663). Verified: high — The span explicitly states 'metabolism of lactose', directly linking 'lac' to lactose and distinguishing it from other options.

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