SCIN132 QUIZ2

Week 2 Quiz Part 1 of 2 - Part I 20.0/ 20.0 Points

Question 1 of 12 2.0/ 2.0 Points

Which of the following groups of organisms is not prokaryotic? A.Archaea B.Bacteria C.Eubacteria
Correct D.Eukarya

Answer Key: D

Question 2 of 12 2.0/ 2.0 Points

The shape of a bacterial cell is determined (and maintained) by the A.cell membrane
Correct B.cell wall C.capsule D.slime layer

Answer Key: B

Question 3 of 12 2.0/ 2.0 Points

The most important component of bacterial cell walls is A.teicoic acid B.lipotechoic acid
Correct C.peptidoglycan D.glutamic acid

Answer Key: C

Question 4 of 12 2.0/ 2.0 Points

A permanent alteration in the DNA of an organism is called a/n
Correct A.mutation B.hereditary marker C.replicon D.allele

Answer Key: A

Question 5 of 12 2.0/ 2.0 Points

Which of the following properties are exclusive to mRNA? A.combines with specific proteins to form ribosomes
Correct B.carries information from DNA for synthesis of a protein C.molecules contain an anticodon D.contains the nucleotide thymine

Answer Key: B

Question 6 of 12 2.0/ 2.0 Points

In the lactose operon, which of the following is an inducer?
Correct A.lactose B.glucose C.B-gal D.RNA polymerase

Answer Key: A

Question 7 of 12 2.0/ 2.0 Points

Which of the following processes increases variation seen in bacteria? A.transformation B.conjugation C.transduction
Correct D.all of the above

Answer Key: D

Question 8 of 12 2.0/ 2.0 Points

In an experiment such as Griffith's pneumococcal experiment, which of the following, when injected into a mouse, would result in its death? A.heat killed smooth pneumoccocci B.live rough pneumococci
Correct C.a mixture of heat killed smooth pneumococci and live rough pneumococci D.a mixture of heat killed rough