California State University, Fullerton » Biology » Biology 251 - Genetics » Spring 2021

Question #1

RNA is less stable than DNA because:

A. it has an oxygen on the 2' carbon as a hydroxyl group.

B. it is single stranded.

C. it is translated.

D. it has uracil instead of thymine.

Question #2

All of the following RNAs are involved in translation except:

A. mRNAs.

B. snRNAs.

C. tRNAs.

D. rRNAs.

Question #3

In a gene, the sense strand is the same as the template strand.

A. False

B. True

Question #4

A difference between replication and transcription is that transcription:

A. reads the template strand 3' to 5'.

B. begins de novo by joining two free nucleoside triphosphates.

C. is made by copying a template.

D. is polymerized 5' to 3'.

Question #5

In bacteria, transcription initiation occurs with the first step of:

A. binding of the RNA polymerase core enzyme to the promoter consensus sequences.

B. binding of the RNA polymerase holoenzyme to the promoter consensus sequences.

C. opening of the transcription bubble so RNA polymerase can bind.

D. binding of sigma factor to the promoter consensus sequences.