How do transcription factors affect gene expression? a.) They are molecules that can turn genes on...
How do transcription factors affect gene expression?
a.) They are molecules that can turn genes on or off.
b.) They are mRNAs that contain extra information that is not part of the DNA genome.
c.)They modify the chromosome structure to create mutations.
d.) They are signals that tell cells whether to divide or not.
Homework Answers
Answer :- "a" i.e They are molecules that can turn genes on or off.
Explanation :- We know transcription is a process where a DNA molecule transcribed to form RNA. In this process of transcription there are several factors involved from which transcription factor is a important factor. Basically a transcription factor attached at a specific portion of DNA make the DNA capable for transcription i.e it perform to on or off the DNA for transcription.
This transcription factor doesn't include any RNA polymerase. So it only make the DNA molecule ready for transcription but not perform the transcription process or polymerization process.
So from the above discussion we can conclude that the answer is option A.
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