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Life Science

Heredity: Inheritance and Variation of Traits

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Heredity: Inheritance and Variation of Traits: DNA

DNA Replication

Description

DNA Replication

DNA replication is the process by which a cell makes an exact copy of its DNA before cell division. This process ensures that each daughter cell receives identical genetic information. DNA replication follows a semi-conservative model, where the two new DNA molecules retain one original strand and incorpora...

Transcript

Every time a cell divides, it copies its DNA and passes one copy to each daughter cell. This process of creating a copy of the DNA is called DNA replication.

It begins during the S phase of the cell cycle, when the DNA helix starts to unwind.

The enzyme DNA helicase acts like a zipper, breaking the base pair bonds and separating the...

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