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. arraying genes in tandem on a chromosome.

B. combinatorial control.

C. binding of proteins to the core promoter.

D. clustering of genes in an operon.

Question #2

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

A. the Pribnow box.

B. response elements.

C. operators.

D. core promoters.

Question #3

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

A. the RISC complex.

B. the nucleosome complex.

C. the Mediator complex.

D. the basal transcription compelx.

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. cRNAs.

B. snoRNAs.

C. miRNAs.

D. guide RNAs.

E. snRNAs.