Question

Question 1.1. (TCO 8) Which enzyme is neededfor elongation of the RNA molecule during transcription? (Points :2)

RNase
RNA gyrase
RNA helicase
RNA ligase
RNA polymerase

Question 2.2. (TCO 8) Which enzyme is requiredfor HIV to reproduce? (Points : 2)

DNA polymerase
Reversetranscriptase
RNA polymerase
tRNA
Ribosomes

Question 3.3. (TCO 8) Animal viruses thatcontain DNA, including herpesviruses, are generally replicated in_____. (Points : 2)

the cytoplasm
the nucleus
the small intestine ofthe animal
the nasal passages
cytokinesis

Question 4.4. (TCO 8) How many nucleotides docodons have? (Points : 2)

Four
Three
Five
Two
One

Question 5.5. (TCO 8) Operators in prokaryotesare similar to _____ in eukaryotes. (Points : 2)

activators
transcriptionfactors
regulatory genes
enhancers
promoters

Question 6.6. (TCO 8) Eukaryotic repressorproteins bind to _____ to inhibit _____. (Points : 2)

silencers;transcription
operons;transcription
enhancers; DNAreplication
regulators; operons
operators;translation

Question 7.7. (TCO 8) Operons encode _____that block the binding of RNA polymerase. (Points : 2)

promoters
DNA polymerase
regulatory genes
repressors
RNA polymerase

Question 8.8. (TCO 9) There are a number ofrecombinant DNA drugs available on the market today. Not every drugwill make it to the market, though, because problems may occur.Which of the following is an example of a problem that couldprevent a drug from being marketed? (Points : 2)

Production of a humanprotein that is unable to function properly
Formation of a bacteriumthat cannot synthesize the product
A bacterium with DNA thatis resistant to restriction enzymes
Formation of a productthat is not sensitive to proteolytic enzymes
Formation ofmutants

Question 9.9. (TCO 9) Which of the followingwas the first FDA-approved recombinant DNA pharmaceutical? (Points: 2)

Humulin
HGH
SCID
CF
RFLP

Question 10.10. (TCO 9) Which of the followingis an example of a transgenic organism? (Points : 2)

An organism carrying agene that was acquired by artificial means
The first organism inwhich a particular mutation has appeared
An organism carryinggenes from two different parents
A cloned organismcarrying two different alleles
An organism that gestatedin an artificial womb

Question 11.11. (TCO 8) Explain how a mutationin the DNA sequence results in a change to a protein sequence.(Points : 10)