Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which
one of the following nucleotide pair bonds would be found in a DNA molecule? a. | adenine-guanine | c. | adenine-cytosine | b. | guanine-cytosine | d. | cytosine-uracil | | | | |
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2.
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The
backbone of a DNA molecule is made of which two components? a. | phosphate
molecules and ribose sugars | b. | deoxyphosphate molecules and ribose
sugars | c. | phosphate molecules and deoxyribose
sugars | d. | deoxyphosphate molecules and deoxyribose
sugars | | |
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3.
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Ribosomes are made of _____. a. | rRNA and protein | c. | rRNA and mRNA | b. | tRNA and
mRNA | d. | protein and
tRNA | | | | |
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4.
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Watson and Crick were the first to suggest that DNA is _____. a. | a short
molecule | c. | a protein
molecule | b. | the shape of a double helix | d. | the genetic material | | | | |
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5.
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The
pairing of _____ in DNA is the key feature that allows DNA to be copied. a. | nucleotides | c. | chromosomes | b. | nitrogen bases | d. | codons | | | | |
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6.
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The
process by which a DNA molecule is copied is called _____. a. | binary
fission | c. | replication | b. | mitosis | d. | translation | | | | |
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7.
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A DNA
nucleotide may be made up of a phosphate group, along with _____. a. | deoxyribose
sugar and uracil | c. | deoxyribose
sugar and thymine | b. | ribose sugar and adenine | d. | ribose sugar and cytosine | | | | |
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8.
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Which
series is arranged in order from largest to smallest in size? a. | chromosome,
nucleus, cell, DNA, nucleotide | b. | cell, nucleus, chromosome, DNA,
nucleotide | c. | nucleotide, chromosome, cell, DNA,
nucleus | d. | cell, nucleotide, nucleus, DNA,
chromosome | | |
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9.
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Messenger RNA is formed in the process of _____. a. | transcription | c. | replication | b. | translation | d. | mutation | | | | |
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10.
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An
RNA molecule is a polymer composed of subunits known as _____. a. | polysaccharides | c. | nucleotides | b. | ribose molecules | d. | uracil molecules | | | | |
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Figure
11-1
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11.
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In
which part of the cell does this process shown in Figure 11-1 take place? a. | in the
nucleus | c. | at the
ribosomes | b. | in food vacuoles | d. | on the chromosome | | | | |
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12.
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Which
of the structures in Figure 11-1 are composed of RNA? a. | II and
IV | c. | I and
V | b. | III and
IV | d. | III and
V | | | | |
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13.
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Structure III in Figure 11-1 represents a(n) _____. a. | gene | c. | codon | b. | amino acid | d. | DNA molecule | | | | |
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14.
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The
process illustrated in Figure 11-1 is called _____. a. | translation | c. | monoploidy | b. | replication | d. | transcription | | | | |
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