DNA replication - 3D

DNA replication – 3D

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This 3D animation shows you how DNA is copied in a cell. It shows how both strands of the DNA helix are unzipped and copied to produce two identical DNA molecules.

To download the subtitles (.srt) for this video, please use the following link: https://goo.gl/BSE3Ju and for more information, please view the video and explore related resources on our site: http://www.yourgenome.org/video/dna-replication

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40 thoughts on “DNA replication – 3D”

  4. I don't understand why teachers can't explain like this ; slow and straight to the point . All they do is draw a diagram ( totally not realistic ) and ask us to write notes . And we are like lol what just happened .

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  11. Question please. The two new Dna molecules are they exactly corresponding(identical)?
    I mean there is no different between the new molecules and the first one according to the sequence of nucleotides ?

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  21. DNA replication is a proof of GOD

    Evolution can't make this

    Only GOD !

    So, who made GOD?!

    The true GOD can't be made

    He is the origin of existing

    The source of big bang

    Can't be created
    Cant be destroyed

    Always there
    And will be always here forever

    He is not made of anything
    He is the creater of everthing

    He is wired
    Can't be measured
    Can't be seen
    Can't be imagined

    We are one of his products

    Gave us five senses to feel and see his other products

    He is the one that gave us the logic
    So we can learn about his other products I the universe

    But when u aske who made GOD

    U are are assuming that he is similar to his products, that he must be made of something

    U are using the 5 senses that was given to u to trying discover him

    Rember that he is the one who gave u these senses

    He is out of these senses
    Outside of your brain limit to imagination

    You can only belive in him

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  26. 2:13 As far as I know, the RNA Primase doesn't lay the RNA primer in the 5' 3' direction as shown here. It's placed in the 3' 5' direction because it follows the Helicase enzyme and only then the DNA polymerase adds the rows of DNA in the 5' 3' direction. Otherwise, great video ! Amazing animations and incredibly well presented.

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  29. DNA G adds the RNA primer at the origin of replication (eukaryotes have several replication bubbles, which makes the replication process faster and causes lagging strands to form). This short RNA sequence is needed to initiate DNA polymerase III to start sequencing complementary nucleotides to the leading and lagging strands. DNA polymerase I comes in after DNA polymerase III to remove the RNA primers and fill in the gaps with new nucleotides. The nicks (broken phosphodiester bonds) in the lagging strands (Okazaki fragments) are then sealed by DNA ligase. RNA polymerase doesn’t need a helicase (DnaG) to unwind the strands, or an RNA primer (dnaB) to initiate transcription, unlike DNA polymerase, which makes it more prone to errors. But a promoter is required to initiate transcription. Both DNA and RNA are sequenced from 5’ to 3’, but RNA replaces Thymine with Uracil. So if the coding template reads 3’ A T T C G 5’ DNA transcription would look like 5’ T A A G C 3’ and it would be the same for RNA, except the removal of thymine would make it 5’ U A A G C 3’.

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