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HomeHomework HelpbiologyDNA Replication Process

DNA Replication Process

DNA replication is the biological process by which a cell duplicates its DNA, resulting in two identical copies of the genetic material. This process involves the unwinding of the double helix and the synthesis of new complementary strands by DNA polymerase enzymes.

intermediate
2 hours
Biology
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Overview

DNA replication is a vital biological process that ensures genetic information is accurately passed from one generation of cells to the next. It involves several key enzymes, including helicase and DNA polymerase, which work together to unwind the DNA double helix and synthesize new strands. The pro...

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Key Terms

DNA
Deoxyribonucleic acid, the molecule that carries genetic information.

Example: DNA is found in the nucleus of cells.

Nucleotide
The basic building block of DNA, consisting of a sugar, phosphate, and a nitrogenous base.

Example: A nucleotide can be adenine, thymine, cytosine, or guanine.

Helicase
An enzyme that unwinds the DNA double helix during replication.

Example: Helicase separates the two strands of DNA.

DNA Polymerase
An enzyme that synthesizes new DNA strands by adding nucleotides.

Example: DNA polymerase is essential for DNA replication.

Replication Fork
The area where the DNA double helix is unwound and replication occurs.

Example: The replication fork is where new DNA strands are formed.

Leading Strand
The DNA strand that is synthesized continuously during replication.

Example: The leading strand is made in the same direction as the replication fork opens.

Related Topics

Transcription
The process of copying DNA into RNA, which is essential for protein synthesis.
intermediate
Translation
The process of synthesizing proteins from RNA, following transcription.
intermediate
Mutations
Changes in the DNA sequence that can affect genetic information and lead to various outcomes.
advanced

Key Concepts

DNA structureEnzymes involvedReplication forkLeading and lagging strands