Matching
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a. | helicase | g. | Okazaki
fragment | b. | single strand binding protein | h. | RNA primer | c. | DNA
polymerase | i. | primase | d. | leading strand | j. | replication fork | e. | lagging
strand | k. | 3' end of
parental strand | f. | DNA ligase | l. | 5' end |
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1.
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___________
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2.
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___________
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3.
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___________
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4.
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___________
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5.
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___________
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Multiple Choice
Identify the letter of the choice that best completes the
statement or answers the question.
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6.
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Fill in the Punnett square and determine the F2 phenotype ratio!  a. | 9:3:3:1 | c. | 9:3:1:1 | b. | 9:3:3:3 | d. | 9:1:3:1 |
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7.
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Purines are ____ molecules.
a. | single ring | c. | double ring | b. | none of the above | d. | built form a base + sugar
chain |
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8.
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Fragments of bacterial DNA exist that may be integrated into the
bacterium's chromosome, but only at specific locations.
a. | Such specificity is characteristic of plasmids. | b. | Because of the
condition that results from the described behavior, the fragment is called an aneuploid
Unit.
| c. | The position of the recognition unit on the fragment results in inversion of the
fragment when incorporated in the chromosome.
| d. | Such a fragment, called a pilus, is used in
bacterial conjugation.
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9.
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Short nucleotide sequences are sometimes repeated several million times in
genomes of eukaryotic organisms.
a. | Their frequency and their locations on the chromosome increases the probability that
they will be involved in reciprocal exchange.
| b. | Because all such segments share the same
sequence, they are called shared sequence DNA.
| c. | The sequences are believed to have been
acquired from viral DNA since they do not code for eukaryotic traits.
| d. | Such sequences are
called satellite DNA. |
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10.
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Chargaff's Rules _______.
a. | describe the base pairing rules | b. | have no importance in
genetics | c. | describe the behavior of bacteriophages | d. | describe the basics
of the DNA strands |
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11.
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When bacteria is used as a gene carrier, the gene to be inserted is hooked on to
the _____.
a. | viral DNA | b. | bacterial DNA | c. | none of the
above | d. | outside carrier |
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12.
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Distances between markers are measured in _____.
a. | centimorgans | c. | centimeters | b. | millimeters | d. | none of the
above |
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13.
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Gene expression is unaffected by _____.
a. | inversion | b. | reading frame shift | c. | mutation | d. | translocation |
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