Question

A segment of DNA that helps RNA polymerase recognize the start of a gene is:

A) Codon
B) Intron
C) Exon
D) Promoter

Answer 1

The segment of DNA that helps RNA polymerase recognize the start of a gene is the Promoter.

Step-by-step explanation:

The segment of DNA that helps RNA polymerase recognize the start of a gene is the Promoter. The promoter is the binding site for RNA polymerase and it specifies where transcription should begin. For example, in prokaryotes, the promoter has a TATA box at -10 and a -35 sequence where the RNA polymerase enzyme binds.