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What description of DNA replication is correct?
a. The two strands of DNA separate and restriction enzymes cut up one strand. Then the DNA uses these pieces to synthesize two new strands out of the old one.
b. The two strands of DNA separate, and each one receives a complementary strand of RNA. Then the new RNA strands serve as templates for the assembly of many new DNA strands.
c. Ligase separates the two strands of the DNA double helix. Then DNA polymerase synthesizes the leading strands and primase synthesizes the lagging strand.
d. Helicases separate the two strands of the double helix, and DNA polymerases use each of the original strands as templates to create two new strands.

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korkeesklara
The answer would be D.: Helicases separate the two strands of the double helix, and DNA polymerases use each of the original strands as templates to create two new strands. :)

Helicases separate the two strands of the double helix, and DNA polymerases use each of the original strands as templates to create two new strands. This is the statement which  DNA replication describes correctly.

So,option D is correct one.

What is DNA replication?

The process of production of identical replicas DNA from the original DNA.

DNA is made up of a double helix of two complementary strands. During replication , these strands are separated . Each strands of original DNA molecule serves as a templates for the production of its counterparts. This process is referred as semiconservative replication . Each nucleotide base of DNA is paired with another base with the helps of hydrogen bond.

There are two types of bases .

  1. PURINE BASES ( adenine , guanine)
  2. PYRIMIDINE BASES ( thymine , cytosine)

They are paired up always against each other. It adenine paired with thymine while guanine paired with cytosine.

learn about DNA replication

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