Biology II Ch. 15 Testing Yourself in Text
Matching
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a. | one gene - one enzyme hypothesis | c. | one gene - one polypeptide
hypothesis | b. | inborn error of metabolism |
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1.
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Sir Archibald Garrod
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2.
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Geaorge Beadle and Edward Tatum
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3.
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Linus Pauling and Harvey Itano
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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4.
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Considering the following pathway, if Beadle and Tatum found that Neurospora
cannot grow if metabolite A is provided, but can grow if B, C, or D is provided, what enzyme would be
missing?
1
2 3
A ---> B ---> C ---> D
a. | enzyme 1 | c. | enzyme 3 | b. | enzyme 2 | d. | all of these are
correct |
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5.
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The central dogma of molecular biology
a. | states that DNA is a template for all RNA production | b. | states that DNA is a
template only for DNA replication | c. | states that translation precedes
transcription | d. | pertains only to prokaryotes because humans are
unique |
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6.
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If the sequence of bases in DNA is TAGC, then the sequence of bases in RNA will
be
a. | ATCG | c. | AUCG | b. | TAGC | d. | both A and B are
correct |
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7.
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RNA processing is
a. | the same as transcription | b. | an event that occurs after RNA is
transcribed | c. | the rejection of old, worn-out RNA | d. | both B and C are
correct |
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8.
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During protein synthesis, an anticodon on transfer RNA (tRNA) pairs with
a. | DNA nucleotide bases | b. | ribosomal RNA (rRNA) nucleotide
bases | c. | messenger RNA (mRNA) nucleotide bases | d. | other tRNA nucleotide
bases |
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9.
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If the DNA codons are CAT CAT CAT, and a guanine base is added at the beginning,
then which would result?
a. | G CAT CAT CAT | c. | frameshift mutation | b. | GCA TCA TCA T | d. | both B and C are
correct |
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Completion
10-12 go with question #10
13-22 go with Understanding the Terms on page
250
Do not write out the words in ( ) or use ( ) in any
answer.
Complete each statement.
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10.
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#10 A. What are the RNA codons? (The answer will be all caps
letters in a row with no spaces)
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11.
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#10 B. What are the tRNA anticodons? (The answer will be all
caps letters in a row with no spaces)
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12.
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#10 C. What is the sequence of amino acids in a protein. (name,
name, name, name, name)
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13.
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A. Agent, such as radiation or a chemical, that brings about a
mutation.
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14.
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B. Enzyme that speeds the formation of RNA from a DNA template.
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15.
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C. In a gene, the portion of the DNA code that is expressed as the result
of polypeptide formation.
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16.
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D. Noncoding segments of DNA that are transcribed but removed before mRNA
leaves the nucleus.
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17.
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E. Process whereby a DNA strand serves as a template for the formation of
mRNA.
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18.
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F. Process whereby the sequence of codons in mRNA determines (is
translated into) the sequence of amino acids in a polypeptide.
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19.
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G. String of ribosomes, simultaneously translating different regions of
the same mRNA strand during protein synthesis.
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20.
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H. Three nucleotides of DNA or mRNA; it codes for a particular amino acid
or termination of translation.
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21.
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I. Three nucleotides on a tRNA molecule attracted to a complementary
codon on mRNA.
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22.
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J. Type of RNA that transfers a particular amino acid to a ribosome
during protein synthesis; at one end it binds to the amino acid and at the other end it has an
anticodon that binds to an mRNA codon.
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