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Questions and Answers
During DNA replication, which of the following enzymes recognize the RNA primer and begins to extend it with DNA?
During DNA replication, which of the following enzymes recognize the RNA primer and begins to extend it with DNA?
- DNA polymerase II
- DNA helicase
- Primase (correct)
- DNA polymerase III
Which of the following enzymes controls transcription?
Which of the following enzymes controls transcription?
- Topoisomerase
- Helicase
- RNA primase
- DNA polymerase
- RNA polymerase (correct)
What would be the most likely effect of a mutation in the promoter region of the gene encoding the muscle protein dystrophin?
What would be the most likely effect of a mutation in the promoter region of the gene encoding the muscle protein dystrophin?
- The dystrophin protein will be dysfunctional
- Splicing of dystrophin mRNA will be defective
- Initiation of dystrophin gene transcription will be defective (correct)
- The half-life of dystrophin mRNA will
- The dystrophin protein will be rapidly degraded within the cell
Which enzyme recognizes the RNA primer and begins to extend it with DNA during DNA replication?
Which enzyme recognizes the RNA primer and begins to extend it with DNA during DNA replication?
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What is the diagnosis for a four-year-old boy who tires easily and has difficulty walking, and genetic analysis shows a mutation in the promoter region of the gene encoding dystrophin?
What is the diagnosis for a four-year-old boy who tires easily and has difficulty walking, and genetic analysis shows a mutation in the promoter region of the gene encoding dystrophin?
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