Question

In eukaryotes, specific transcription factors have two distinct domains:

A. a DNA-binding domain and a RNA-binding domain.
B. a DNA-binding domain and an activation domain.
C. a DNA-binding domain and a repressor domain.
D. a DNA-binding domain and an enhancer domain.
E. a DNA-binding domain and an operator domain.

Answer 1

The correct answer is B. In eukaryotes, specific transcription factors have two distinct domains: a DNA-binding domain and an activation domain. The DNA-binding domain allows the transcription factor to bind to specific DNA sequences, while the activation domain interacts with other transcriptional machinery to initiate gene expression.