DNA and DNA replication | Baamboozle - Baamboozle

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What is the back of DNA strand called?

The sugar-phophate backbone.

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Name the four DNA bases:

Adenine, Thymine, Guanine, Cytosine

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What do the single stranded binding proteins (SSBP) do?

Hold template strands in place, prevents DNA strands fronm joining together.

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Explain why DNA strands have a 5' end and a 3' end

Each carbon is numbered on a nucleotide. The last carbon on the strand is5th = 5', 3rd = 3'.

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What are the building blocks of DNA?

Nucleotides

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What does the enzyme, helicase do?

Breaks hydrogen bonds between bases, seperating the two strands.

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When does DNA replication occur?

Before mitosis / Interphase - S-phase

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What are Okazaki fragments?

Short DNA chunks of the lagging strand.

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The DNA backbone has weaker bonds than the middle of the strand?

False!

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Apart from enzymes, list two essential ingrediants for DNA replication:

Free nucleotides, Template strand.

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DNA repliciation is described as being semi-conservative, explain what this means?

Each new strand produced contain an original template strand and a newly built strand.

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What is the function of the RNA primer?

The RNA primer marks the beginning of the new DNA strand.

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Where is DNA stored in the Eukaryotic cell?

The nucleus

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