Question

A promoter is ______. A protein that binds to the RNA polymerase to facilitate transcription A protein that binds to the ribosome to facilitate translation A sequence of nucleotides in the mRNA that facilitates binding to the ribosome A sequence in DNA that brings RNA polymerase near the site for transcription A section of DNA that can be thousands of base pairs away from the beginning o

Answer 1

A promoter is a sequence in DNA that brings RNA polymerase near the site for transcription

Step-by-step explanation:

A promoter is a specific DNA sequence positioned near a gene's beginning, serving as a recognition site for RNA polymerase during transcription initiation. It acts as a molecular signal, guiding RNA polymerase to bind and initiate the synthesis of RNA from DNA. This region is crucial for recruiting RNA polymerase to the DNA template, ensuring accurate transcription of genetic information. Essentially, a promoter orchestrates the start of the transcription process, facilitating the precise and controlled synthesis of RNA necessary for subsequent protein production or other cellular functions. Therefore, option D accurately characterizes a promoter's role in gene expression.

Answer 2

A sequence in DNA molecule that brings RNA polymerase near the site for transcription initiation

Step-by-step explanation:

1. Promoter: promoter sequences are DNA sequences that define where transcription of a gene begin by RNA polymerase .

2. Promoters are usually located directly upstream or at the 5' end of the transcription initiation site.

3. They helps in the binding of RNA polymerase to the DNA.

4. Example of promoter- TATA box .