AP Biology Unit 6: DNA, RNA, and DNA Replication

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Can you describe the similarities and differences between DNA and RNA? Do you know the enzymes involved in DNA replication? Put your knowledge to the test with this Barron's quiz developed from our must-have AP® Biology Premium study guide. #apbiology #biology #apbio #apprep #apbioexam #apbioreview #apbiounit6 #DNA #RNA #genes #highschool #grade10 #grade11 #grade12 AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.

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Questions 10

Answers

1
Which of the following is true of both DNA and RNA?
Both use the same four nitrogenous bases.
Both contain phosphates.
Both contain the same sugar.
Both are typically single-stranded.
2
Which enzyme connects Okazaki fragments on the lagging strand?
topoisomerase
RNA polymerase
helicase
DNA ligase
3
Which enzyme adds new bases to growing DNA strands?
RNA polymerase
helicase
DNA polymerase
DNA ligase
4
A double-stranded RNA virus is made up of 23% adenines and 27% cytosines. What is the remaining nucleotide composition?
23% uracil, 27% thymine
23% thymine, 27% guanine
23% guanine, 27% thymine
23% uracil, 27% guanine
5
A virus has 21% adenines, 29% cytosines, 29% guanines, and 21% thymines. What is most likely its genetic material?
single-stranded DNA
double-stranded DNA
double-stranded RNA
single-stranded RNA
6
Which enzyme unwinds DNA in preparation for replication?
DNA polymerase
topoisomerase
helicase
RNA polymerase
7
Which of these is NOT a pyrimidine?
thymine
cytosine
uracil
adenine
8
DNA replication is best described as __________.
semi-dispersive
semiconservative
conservative
dispersive
9
Which form of genetic material is found in BOTH prokaryotes and eukaryotes?
circular chromosome
plasmid DNA
mitochondrial DNA
linear chromosome
10
Like adding new cars to a toy train, new nucleotides can only be added to the __________.
5′ phosphate
3′ hydroxyl
3′ phosphate
5′ hydroxyl

AP Biology Unit 6: DNA, RNA, and DNA Replication Flashcards | StudBud

AP Biology Unit 6: DNA, RNA, and DNA Replication

10 termsStudBud Administration14,570 plays

Flashcards10 cardsFPractice quizPHost liveL

Questions 10

Answers

1
Which of the following is true of both DNA and RNA?
Both use the same four nitrogenous bases.
Both contain phosphates.
Both contain the same sugar.
Both are typically single-stranded.
2
Which enzyme connects Okazaki fragments on the lagging strand?
topoisomerase
RNA polymerase
helicase
DNA ligase
3
Which enzyme adds new bases to growing DNA strands?
RNA polymerase
helicase
DNA polymerase
DNA ligase
4
A double-stranded RNA virus is made up of 23% adenines and 27% cytosines. What is the remaining nucleotide composition?
23% uracil, 27% thymine
23% thymine, 27% guanine
23% guanine, 27% thymine
23% uracil, 27% guanine
5
A virus has 21% adenines, 29% cytosines, 29% guanines, and 21% thymines. What is most likely its genetic material?
single-stranded DNA
double-stranded DNA
double-stranded RNA
single-stranded RNA
6
Which enzyme unwinds DNA in preparation for replication?
DNA polymerase
topoisomerase
helicase
RNA polymerase
7
Which of these is NOT a pyrimidine?
thymine
cytosine
uracil
adenine
8
DNA replication is best described as __________.
semi-dispersive
semiconservative
conservative
dispersive
9
Which form of genetic material is found in BOTH prokaryotes and eukaryotes?
circular chromosome
plasmid DNA
mitochondrial DNA
linear chromosome
10
Like adding new cars to a toy train, new nucleotides can only be added to the __________.
5′ phosphate
3′ hydroxyl
3′ phosphate
5′ hydroxyl