Match each step in a PCR cycle to its description. Unwind DNA to expose single strands A. Extension Temperature drop that allows primers to hybridize with the template B. Heat based denaturation Temperature increase that enables Taq to become maximally active C. Annealing
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Unwind DNA to expose single strands - This step corresponds to Heat based denaturation. In this step, the temperature is raised to a high level (usually 94-98°C) to break the hydrogen bonds between the DNA strands, causing the DNA to unwind and separate into two Show more…
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The steps involved in a single PCR cycle, in the correct order, are A) cool to allow DNA strands to anneal, heat to allow primer to anneal, cool to allow DNA polymerase to copy DNA. B) heat to denature DNA strands, cool to allow primer to anneal, heat slightly to allow DNA polymerase to copy DNA. C) heat to denature DNA strands and for primer to anneal, cool to allow DNA polymerase to copy DNA. D) cool to denature DNA strands, heat to allow primer to anneal, cool to allow DNA polymerase to copy DNA.
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Which of the following steps are catalysed by Taq polymerase in a PCR reaction? (a) Denaturation of template DNA (b) Annealing of primers to template DNA (c) Extension of primer end on the template DNA (d) All the above
Match the recombinant DNA method with the appropriate enzyme. __________PCR __________cutting DNA __________cDNA synthesis __________DNA sequencing __________pasting DNA a. Taq polymerase b. DNA ligase c. reverse transcriptase d. restriction enzyme e. DNA polymerase
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