Which Of The Following Would Be Transcribed Into Mrna
Question: Transformation of bacteria was shown to occur when _______ bacteria were injected into mice
and the mice ______.
live S strain; died
B. live R strain; didn’t die
C. live S and R strain; died
D. live R strain and dead S strain; died
E. live S strain and dead R strain; didn’t die
Answer: D. live R strain and dead S strain; died
Question: DNA was shown to be the transforming substance when only the ______ enzymes could inhibit
transformation.
A. proteinase
B. RNAase
C. DNAase
D. lipase
Answer: C. DNAase
Question: If a DNA sample contains 13% adenine, what percentage of the sample contains cytosine?
A. 13%
B. 37%
C. 26%
D. 74%
Answer: B. 37%
Question: One of Chargaff’s rules states that
A. A + G = T + C.
B. A = C, T = G.
C. A = G, T = C.
D. A + T = G + C.
Answer: A. A + G = T + C.
Question:
Answer: A. indicating that DNA has a double helix structure.
Question: In the Watson and Crick model of DNA, the “steps” of the ladder are composed of
A. sugars.
B. a purine and a pyrimidine.
C. two purines.
D. two pyrimidines.
E. a sugar and a phosphate molecule.
Answer: B. a purine and a pyrimidine.
Question:
Answer: D. All of the choices describe how Pauling’s model was different than Watson and Crick’s model.
Question:
Answer: B. genes have no difficulty crossing the species
barrier
Question:
Answer: B. Replication occurs as each base is paired with another exactly like it.
Question: Nucleotides contain all of the following except:
A. a phosphate group
B. a 5 - carbon sugar
C. a nitrogen base
D. histones
E. A and C
Answer: D. histones