#Question id: 2815
#Unit 2. Cellular Organization
Telomerase
a. extends DNA strands during DNA synthesis.
b. has reverse transcriptase activity.
c. is a protein-RNA complex.
d. replicates repetitious DNA located at the centromere.
#Question id: 2816
#Unit 2. Cellular Organization
Which of the following mutations can result in a reduction of β-galactosidase?
a. a mutation in adenylate cyclase
b. a mutation in catabolite activator protein (CAP)
c. a mutation in the CAP site in the lac control region
d. a mutation in the repressor binding site in the operator
#Question id: 2817
#Unit 2. Cellular Organization
Which of the following are not found in DNA-binding proteins?
#Question id: 2818
#Unit 2. Cellular Organization
Human mitochondrial DNA
#Question id: 2819
#Unit 2. Cellular Organization
A typical eukaryotic gene consists of which of the following elements?
a. internal ribosome binding sites b. introns c. exons d. enhancers
#Question id: 2820
#Unit 2. Cellular Organization
Multiple mRNAs can arise from a primary transcript by use of alternative
a. splicing. b. poly(A) sites. c. promoters. d. ribosome binding sites.