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If the enzyme DNA helicase was denatured, what would be the immediate effect on DNA replication?

A) New nucleotides would not be added to the growing strand
B) original DNA strands would not be separated
C) sections of new DNA in the lagging strand could not be connected
D) DNA mutation rate would increase dramatically

Respuesta :

luisvaschetto

If the enzyme DNA helicase was denatured, then original DNA strands would not be separated (Option B).

  • DNA helicase is a key enzyme that unwinds both DNA strands during DNA replication.

  • In consequence, there would be no replication fork if this enzyme helicase) is denatured.

  • DNA polymerase is the enzyme required to add new nucleotides to the growing DNA strands.

In conclusion, if the enzyme DNA helicase was denatured, then original DNA strands would not be separated (Option B).

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