BIO 172 EXAM 2 WITH 100%
CORRECT ANSWERS 2026
If there was a mutation in your genome, such that RISC protein
could not be translated, you would expect correct answer An
increase of LINE elements in your genome
Whole genome sequencing is often approached by a shotgun
sequencing technique in which large genomes are: correct
answer Randomly digested, short fragments are sequenced,
and the overlapping sequences are assembled in order
Packaging of DNA into chromatin... correct answer Inhibits
transcription by blocking RNA polymerase from accessing DNA
What is the correct order of steps in a PCR reaction? correct
answer Denature the DNA, anneal DNA primers, and extend the
chain with DNA polymerase
Replica plating was used to find mutant E. Coli that cannot utilize
lactose as a good source because correct answer Bacteria with
the desired mutation will not grow on lactose only plates
Which of the following would be true of bacteria that had a
mutation in the operator region of the Lac operon such that LacI
could no longer bind? correct answer Transcription levels
would be high if glucose levels are low regardless of lactose
levels.
, Transcription in Eukaryotes requires all of the following except
correct answer Primers
What occurs during the annealing step of PCR? correct answer
DNA primers bind to short stretches of DNA through
complementary base pairing
Which of the following is TRUE about processes that happen
during photosynthesis correct answer Protons move across the
thylakoid membrane down their concentration gradient so that
ATP is produced
Eukaryotic cells use several mechanisms to inhibit transcription of
transposable elements. Which of the following can be used to
achieve this? correct answer siRNA's
All of the following are needed during the process of transcription
EXCEPT:
A. A methionine start codon
B. Genes
C. Enzymes to unwind dsDNA
D. A termination sequence correct answer A. A methionine
start codon
What is not directly used or produced in the Calvin cycle? correct
answer Glucose
CORRECT ANSWERS 2026
If there was a mutation in your genome, such that RISC protein
could not be translated, you would expect correct answer An
increase of LINE elements in your genome
Whole genome sequencing is often approached by a shotgun
sequencing technique in which large genomes are: correct
answer Randomly digested, short fragments are sequenced,
and the overlapping sequences are assembled in order
Packaging of DNA into chromatin... correct answer Inhibits
transcription by blocking RNA polymerase from accessing DNA
What is the correct order of steps in a PCR reaction? correct
answer Denature the DNA, anneal DNA primers, and extend the
chain with DNA polymerase
Replica plating was used to find mutant E. Coli that cannot utilize
lactose as a good source because correct answer Bacteria with
the desired mutation will not grow on lactose only plates
Which of the following would be true of bacteria that had a
mutation in the operator region of the Lac operon such that LacI
could no longer bind? correct answer Transcription levels
would be high if glucose levels are low regardless of lactose
levels.
, Transcription in Eukaryotes requires all of the following except
correct answer Primers
What occurs during the annealing step of PCR? correct answer
DNA primers bind to short stretches of DNA through
complementary base pairing
Which of the following is TRUE about processes that happen
during photosynthesis correct answer Protons move across the
thylakoid membrane down their concentration gradient so that
ATP is produced
Eukaryotic cells use several mechanisms to inhibit transcription of
transposable elements. Which of the following can be used to
achieve this? correct answer siRNA's
All of the following are needed during the process of transcription
EXCEPT:
A. A methionine start codon
B. Genes
C. Enzymes to unwind dsDNA
D. A termination sequence correct answer A. A methionine
start codon
What is not directly used or produced in the Calvin cycle? correct
answer Glucose
