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DNA and RNA Structure — Quiz Answers

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Which structural component is found in DNA but not in RNA?

A
phosphate group
B
ribose
C
nitrogenous base
D
deoxyribose
3

Which structural characteristic is seen in RNA but not in DNA?

A
chains of nucleotides
B
a helical shape
C
a single strand
D
double strands
4

Which represents a strand of RNA bases?

A
UGGCUCGAA
B
CAATCTAGG
C
TGGCTCGAA
D
GTTAGTGCC
5

Which base is found only in RNA?

A
uracil
B
thymine
C
ribose
D
deoxyribose
7

Where is the DNA located in a eukaryotic cell?

A
nucleus
B
cell membrane
C
ribosomes
D
cytoplasm
8

Which of these could be a nucleotide of RNA?

A
ribose plus phosphate group plus uracil
B
deoxyribose plus phosphate group plus uracil
C
ribose plus phosphate group plus thymine
D
deoxyribose plus phosphate group plus thymine
9

Which structural component is found in DNA but not in RNA?

A
ribose
B
nitrogenous base
C
phosphate group
D
deoxyribose
10

Where is the DNA located in a eukaryotic cell?

A
ribosomes
B
nucleus
C
cell membrane
D
cytoplasm
12

What did Chargaff discover while studying bases in the DNA of organisms?

A
There were equal amounts of all four bases in every organism, or 25 percent of each base.
B
The bases in the DNA of each organism were unique.
C
The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.
D
The overall percentages of bases were different from one organism to the next.
15

What is the role of RNA?

A
to break down proteins into amino acid monomers
B
to move information from the nucleus to the ribosomes for protein synthesis
C
to provide the original blueprint for protein production
D
to move information from the ribosomes to the nucleus for protein synthesis
16

Which of these could be a nucleotide of RNA?

A
ribose plus phosphate group plus thymine
B
ribose plus phosphate group plus uracil
C
deoxyribose plus phosphate group plus thymine
D
deoxyribose plus phosphate group plus uracil
17

What did Chargaff discover while studying bases in the DNA of organisms?

A
The overall percentages of bases were different from one organism to the next.
B
The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.
C
The bases in the DNA of each organism were unique.
D
There were equal amounts of all four bases in every organism, or 25 percent of each base.
18

What is the role of RNA?

A
to move information from the ribosomes to the nucleus for protein synthesis
B
to break down proteins into amino acid monomers
C
to move information from the nucleus to the ribosomes for protein synthesis
D
to provide the original blueprint for protein production
20

Which structural characteristic is seen in RNA but not in DNA?

A
chains of nucleotides
B
a single strand
C
a helical shape
D
double strands

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