AnswersBiologyDNA and RNA Structure

DNA and RNA Structure — Quiz Answers

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21
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Which base is found only in RNA?

A
uracil
B
ribose
C
deoxyribose
D
thymine
22
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Which discovery is attributed to Phoebus Levene?

A
construction of an accurate DNA model
B
extraction and observation of DNA
C
identification of ribose and deoxyribose
D
recognition of RNA as DNA’s messenger
23

Which discovery is attributed to Phoebus Levene?

A
identification of ribose and deoxyribose
B
recognition of RNA as DNA’s messenger
C
construction of an accurate DNA model
D
extraction and observation of DNA
24

Where is the DNA located in a eukaryotic cell?

A
nucleus
B
cell membrane
C
ribosomes
D
cytoplasm
25

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

A
deoxyribose
B
phosphate group
C
nitrogenous base
D
ribose
26

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

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

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