When DNA replication begins,. a. the two DNA strands unwind...

When DNA replication begins,_____________.
a. the two DNA strands unwind from each other
b. the two DNA strands condense for base transfers
c. two DNA molecules bond
d. old strands move to find new strands

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Key Concepts

Replication Fork

The replication fork is the active zone where the DNA double helix is unwound and replication occurs. It is characterized by a Y-shaped structure resulting from the splitting of the parental DNA strands, allowing replication machinery to synthesize new DNA concurrently on both strands.

Strand Separation

At the onset of DNA replication, the double helix structure of DNA is unwound into two single strands. This separation is mediated by specialized enzymes that break the hydrogen bonds between the complementary bases, enabling each strand to serve as a template for the synthesis of a new, complementary strand.

DNA Replication

DNA replication is the process by which a cell makes an exact copy of its DNA, ensuring that genetic information is faithfully transmitted to daughter cells. This process is vital for cell division, encompassing several key steps such as initiation, elongation, and termination.

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