KU BIO 150 EXAM 2024
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Which one of the following is NOT a way in which RNA differs from DNA -
ANSWERS-RNA nucleotides can have only a single phosphate group and DNA
nucleotides have one, two, or three phosphate groups.
QUESTION 2
Ribose differs from deoxyribose in that a ribose: - ANSWERS-has an extra
hydroxyl group.
QUESTION 3
In eukaryotes, activator proteins bind to _____; generalized transcription factors
bind to _____. - ANSWERS-enhancers; promoters
QUESTION 4
Transcription continues until: - ANSWERS-a terminator sequence is encountered.
END OF
PAGE 1
, KU BIO 150 EXAM 2024
QUESTION 5
Which one of the following CORRECTLY lists the components necessary for
eukaryotic transcription? - ANSWERS-RNA polymerase, general transcription
factors, DNA, and RNA nucleotide
QUESTION 6
All RNA is translated to generate proteins. - ANSWERS-false
QUESTION 7
A polymerization reaction is made irreversible by: - ANSWERS-hydrolysis of a
pyrophosphate group into two inorganic phosphates.
QUESTION 8
Whichever DNA strand is transcribed, the RNA polymerase reads the template
strand from 3′ to 5′. - ANSWERS-true
QUESTION 9
an exon is - ANSWERS-part of an intact, mature mRNA that leaves the nucleus.
END OF
PAGE 2
, KU BIO 150 EXAM 2024
QUESTION 10
What would happen if an enhancer sequence were mutated so that its binding
partner was always bound and recruiting the RNA polymerase complex? -
ANSWERS-Transcription would occur continuously.
QUESTION 11
Among the possible errors listed below, which would prevent an mRNA with the
correct sequence from being translated appropriately? - ANSWERS-Either the 5′
cap was not added or the poly(A) tail was not formed.
QUESTION 12
RNA polymerase complex can do which of the following? - ANSWERS-All of
these choices are correct.
QUESTION 13
All introns have identical lengths and sequences. - ANSWERS-false
END OF
PAGE 3
, KU BIO 150 EXAM 2024
QUESTION 14
Alternative splicing means that: - ANSWERS-different spliced forms contain
different combinations of exons.
QUESTION 15
In prokaryotes, the messenger RNA consists of the: - ANSWERS-primary RNA
transcript.
QUESTION 16
Which of the following types of post-transcriptional modification is common in
eukaryotes? - ANSWERS-5' cap addition
intron removal
polyadenylation
QUESTION 17
In a long double-stranded DNA molecule containing the genetic information for
many genes, the template strand for one gene may be the nontemplate strand for
another gene along the way - ANSWERS-true
END OF
PAGE 4
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Which one of the following is NOT a way in which RNA differs from DNA -
ANSWERS-RNA nucleotides can have only a single phosphate group and DNA
nucleotides have one, two, or three phosphate groups.
QUESTION 2
Ribose differs from deoxyribose in that a ribose: - ANSWERS-has an extra
hydroxyl group.
QUESTION 3
In eukaryotes, activator proteins bind to _____; generalized transcription factors
bind to _____. - ANSWERS-enhancers; promoters
QUESTION 4
Transcription continues until: - ANSWERS-a terminator sequence is encountered.
END OF
PAGE 1
, KU BIO 150 EXAM 2024
QUESTION 5
Which one of the following CORRECTLY lists the components necessary for
eukaryotic transcription? - ANSWERS-RNA polymerase, general transcription
factors, DNA, and RNA nucleotide
QUESTION 6
All RNA is translated to generate proteins. - ANSWERS-false
QUESTION 7
A polymerization reaction is made irreversible by: - ANSWERS-hydrolysis of a
pyrophosphate group into two inorganic phosphates.
QUESTION 8
Whichever DNA strand is transcribed, the RNA polymerase reads the template
strand from 3′ to 5′. - ANSWERS-true
QUESTION 9
an exon is - ANSWERS-part of an intact, mature mRNA that leaves the nucleus.
END OF
PAGE 2
, KU BIO 150 EXAM 2024
QUESTION 10
What would happen if an enhancer sequence were mutated so that its binding
partner was always bound and recruiting the RNA polymerase complex? -
ANSWERS-Transcription would occur continuously.
QUESTION 11
Among the possible errors listed below, which would prevent an mRNA with the
correct sequence from being translated appropriately? - ANSWERS-Either the 5′
cap was not added or the poly(A) tail was not formed.
QUESTION 12
RNA polymerase complex can do which of the following? - ANSWERS-All of
these choices are correct.
QUESTION 13
All introns have identical lengths and sequences. - ANSWERS-false
END OF
PAGE 3
, KU BIO 150 EXAM 2024
QUESTION 14
Alternative splicing means that: - ANSWERS-different spliced forms contain
different combinations of exons.
QUESTION 15
In prokaryotes, the messenger RNA consists of the: - ANSWERS-primary RNA
transcript.
QUESTION 16
Which of the following types of post-transcriptional modification is common in
eukaryotes? - ANSWERS-5' cap addition
intron removal
polyadenylation
QUESTION 17
In a long double-stranded DNA molecule containing the genetic information for
many genes, the template strand for one gene may be the nontemplate strand for
another gene along the way - ANSWERS-true
END OF
PAGE 4
