The enzyme RNA polymerase: O catalyzes the joining of DNA fragments together. the enzyme which synthesizes an RNA strand from a DNA template strand. helps to "unzip" the DNA helix during DNA replication by breaking the hydrogen bonds. synthesizes a new strand of DNA complementary to a template strand. maintains the telomeres located at chromosome ends.
Added by Alan P.
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Step 1: RNA polymerase catalyzes the joining of RNA nucleotides to form an RNA strand from a DNA template strand. Show more…
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The enzyme with a built-in RNA strand template, which enables DNA synthesis at the end of the eukaryotic chromosome, is: a) telomerase b) DNA polymerase c) Topoisomerase
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Adds deoxy-nucleotides to growing DNA strand or primer DNA Polymerase Attaches together two adjacent segments of DNA with a phosphodiester bond DNA Ligase Builds a short sequence of RNA to serve as a starting point for DNA replication Telomerase Breaks the hydrogen bonds between the two strands of DNA in order to open it up for replication Removes supercoils that form because of the unwinding of the DNA helix Keeps the two strands of DNA from coming back together Adds on many copies of repeating sequence to the ends of chromosomes Topoisomerase Single Strand Binding Proteins DNA Polymerase DNA Ligase Primase Telomerase Helicase
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There are a number of enzymes involved in DNA replication. Match the enzymes below with their function. Helicase Single-Strand Binding Protein (SSB) Topoisomerase DNA Primase DNA Polymerase DNA Ligase Functions: - Builds an RNA strand for protein synthesis - Breaks the hydrogen bond holding the double helix together - Prevents coiling and knots from forming in the DNA during replication - Links Okazaki fragments together - Prevents the helix from re-forming before replication can occur - Begins replication of the leading strand and synthesizes short RNA primers for the lagging strand - Links nucleotides together to form the new DNA strand
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