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

Question #1

The regulation of genes in the same pathway is coordinated in eukaryotes by:

A. binding of proteins to the core promoter.

B. arraying genes in tandem on a chromosome.

C. combinatorial control.

D. clustering of genes in an operon.

Question #2

Consensus sequences in eukaryotes to which transcription activators bind are frequently called:

A. response elements.

B. core promoters.

C. the Pribnow box.

D. operators.

Question #3

Regulatory regions of DNA enhance gene expression at the promoter through the protein-protein interactions bridged by:

A. the basal transcription compelx.

B. the RISC complex.

C. the Mediator complex.

D. the nucleosome complex.

Question #4

The major pathway for mRNA turnover involves:

A. removal of hte mRNA 5' cap.

B. cleavage of the mRNAat an internal location.

C. degradation of the mRNA 3' polyA tail.

Question #5

Small RNAs involved in regulating cellular mRNA levels by association with enzymes in the RNA-induced silencing complex include the:

A. miRNAs.

B. guide RNAs.

C. snRNAs.

D. cRNAs.

E. snoRNAs.