Chapter 10

Question 1

What does a transcription unit consist of

Answer 1

transcription unit consists of a promoter, an RNA-coding region, and a terminator.

Question 2

What are the substrates for RNA synthesis

Answer 2

ribonucleoside triphosphates.

Question 3

Purpose of the sigma factor

Answer 3

The sigma factor controls the binding of the core enzyme to the promoter.

Question 4

three primary regions of an mRNA molecule

Answer 4

a 5’ untranslated region, a protein-coding region, and a 3’ untranslated region.

Question 5

Processing of pre-mRNA includes:

Answer 5

cap added to the 5’ end of pre-mRNA; the 3’ end is cleaved and a poly(A) tail is added; internal nucleotides are modified; and introns are removed

Question 6

RNA’s that play important roles in gene silencing

Answer 6

Small interfering RNAs, microRNAs, Piwi-interacting RNAs, and CRISPR RNAs

Question 7

link

Answer 7

https://quizlet.com/22297345/genetics-questions-chapter-13-flash-cards/#:~:text=How%20is%20this%20substrate%20modified,cytosine%20triphosphate%2C%20and%20uridine%20monophosphate.