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24 Cards in this Set
- Front
- Back
Gene expression includes which of the following?
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transcription and translation |
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The central dogma describes which of the following? |
the steps of gene expression |
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Which of the following best describes the direction in which lagging strands are added?
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as 5' to 3' Okazaki fragments in an overall 3' to 5' direction only |
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Which of the following correctly describes uracil and where is it found? |
It is a nitrogenous base found in RNA only |
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Which of the following is another name for the template strand (the strand of DNA that is transcribed)? |
antisense strand |
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Which of the following correctly describes events that occur during transcription? |
RNA polymerase binds to the promoter |
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Which of the following correctly explains why DNA replication is described as semiconservative?
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Each daughter strand contains one old strand and one new strand |
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During DNA replication in bacteria, which of the following enzymes adds DNA nucleotides to the growing strand? |
DNA polymerase III |
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Topoisomerase II in bacteria is also called which of the following? |
gyrase |
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DNA polymerase III adds DNA nucleotides in which of the following direction(s)? |
n the 5′ to 3′ direction only |
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Which of the following removes the primers during DNA replication in bacteria? |
DNA polymerase I |
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The noncoding, repetitive sequences at the end of eukaryotic chromosomes are called which of the following? |
telomeres |
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During DNA replication, the lagging strand is formed from which of the following? |
Okazaki fragments |
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Which of the following is the maximal rate of growth of a new bacterial DNA strand? |
1000 nucleotides per second |
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Which statement best describes DNA polymerase I? |
It has exonuclease activity |
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Which describes one difference between prokaryotic and eukaryotic DNA replication? |
Eukaryotes have more origins of replication than prokaryotes |
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Telomerase in humans is generally active in which cells? |
all cells |
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Which sequences of eukaryotic genes code for proteins? |
Exons |
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Which of the following is one important distinction between prokaryotic and eukaryotic mRNA? |
Eukaryotic mRNA is generally monocistronic |
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Which of the following defines a sigma (σ) factor? |
subunit of prokaryotic RNA polymerase that is important in binding to DNA |
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Stop codons are also known as which of the following? |
nonsense codons |
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Which researchers provided evidence that DNA replication was semiconservative? |
Matthew Meselson and Franklin Stah |
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Quinolones are medications that target which of the following? |
DNA GYRASE |
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Which enzyme(s) elongate the lagging strand during replication in eukaryotes? |
DNA polymerase |