An enzyme that elongates new DNA.Group of answer choicesprimasehelicaseligaseDNA polymerasesingle-strand binding protein (SSBP)topoisomeraseNext
Question
An enzyme that elongates new DNA.
Group of answer choices
- primase
- helicase
- ligase
- DNA polymerase
- single-strand binding protein (SSBP)
- topoisomerase
Next
Solution
To identify the enzyme that elongates new DNA, let's analyze the options provided:
- Primase - This enzyme synthesizes short RNA primers, which are necessary for DNA polymerase to initiate DNA synthesis.
- Helicase - This enzyme unwinds the DNA double helix, separating the two strands to allow for replication.
- Ligase - This enzyme joins together Okazaki fragments on the lagging strand, sealing breaks in the DNA backbone.
- DNA Polymerase - This is the primary enzyme responsible for adding nucleotides to the growing DNA strand during DNA replication.
- Single-Strand Binding Protein (SSBP) - These proteins stabilize single-stranded DNA during replication to prevent it from re-annealing.
- Topoisomerase - This enzyme helps relieve the tension and supercoiling that occurs ahead of the replication fork.
Final Answer
The enzyme that elongates new DNA is DNA Polymerase.
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