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What unwinds and unzips a DNA molecule?

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Helicase an enzyme that causes the DNA strands to unzip and unwind by breaking the weak hydrogen bonds between the complementary bases
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What happens after DNA is unzipped?

This method is called " Semi-conservative " which replicates the DNA so it begins with unzipping, unwinding the DNA by breaking down the hydrogen bonds between the nitrogenou

During mitosis does DNA molecules unwind?

Quite the contrast, actually. During mitosis, the DNA is in a coiled form of chromosome. During DNA replication, however, the DNA is unwound with the help of an enzyme DNA hel

What unwinds the DNA for protein synthesis?

Protiens called helicases. They allow for other proteins to make mRNA strands from the DNA template and are also used when DNA replicates.

What occurs when a molecule of Dna is unzipped?

One double stranded Dna molecule is separated into two single stranded Dna molecules. A large multitude of bioprocess possibilities subsequentially present themselves!
In Biology

Why does the DNA unwind?

Most of the time during a cell's life, the DNA stays unwound as chromatin, only when mitosis or meiosis occurs does it condense into chromosomes. This is so it is easier to se
In Biology

At the beginning of DNA replication what two processes unzip the two strands of a DNA molecule?

Transcription and replication. According to evolution that is. Is this question asking at the begininning of time, or an overall in-body DNA question? Life as we know it canno