DNA Replication Animation – Super EASY
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DNA Replication Animation – Super EASY


In this animation, we’ll see the remarkable way our DNA is tightly packed up, so that 6 feet of this long molecule fits into the microscopic nucleous of every cell. The process starts when DNA is wrapped around special proteins molecules called “Histones”. The combined loop of DNA and protein is called a “Nucleosome”. Next, the nucleosomes are packaged into a thread. The end result is a fiber known as “Chromatin”. This fiber is then looped and coiled yet again. Leading finally to the familiar shapes known as “Chromosomes”, which can be seen in the nucleus of dividing cells. Chromosomes are not always present. They form around the time cells divide when the two copies of the cell’s DNA need to be separated. When DNA replicates, its strands are separated by the enzyme Helicase. Single stranded DNA binding proteins keep the strands from reanealing One DNA strand encodes the leading strand, which forms from its 5′ to its 3′ end. Using DNA polymerase III. No problem here, but the lagging strand presents problems. It has to form from 5′ to 3′ too. It forms in pieces called the “Okazaki fragments”. First, an RNA primase lays down an RNA primer. Then, DNA polymerase III lays down a new DNA. The process repeats again and again. DNA polymerase I replaces the RNA primers with DNA. Finally, DNA ligase links the Okazaki fragments.

100 thoughts on “DNA Replication Animation – Super EASY

  1. Imagine the money/man hours spent figuring this out .. Then imagine what the CIA controlled establishment hides from us that they've been doing with this knowledge

  2. My class spent like 4 weeks on this topic and I only had to watch it 5 times to get it <3. Life saver.

  3. sir i am 12 medical student i request to you plz aap genetics ke or imp topics ki video upload krre thnx

  4. sir ye jb single cell protein enter kerta h DNA me tab ye iski shape ko further aage increse krta chala jata h kya

  5. seriously , i am soo thankful to u for posting this , its soo simple and time saving , saved hours of mine ! thank uu

  6. I am little bit confused about this video.Two separate DNA polymerase replicate leading and lagging strands or one DNA polymerase replicates both strands,which one is correct?

  7. Literally my biology teacher teaches things so fast and expects us to understand everything he says and take a test two days later when I basically don’t know anything. But this video is only like three minutes long and I understand everything I need to know for that test tomorrow so ummm petition to fire that biology teacher..?

  8. I have a question, we have 23 pairs of Chromosoms, so when DNA replication begins, are they doing it all 23 in same time?If yes which chromosome contain each genes ? I think i missing something here :/.If every chromosome contains whole DNK structure why we have 23 pairs, what is diference? Are they replicating separatly one by one or in same time, and are they all together building one mayor DNK chain or separate chains?

  9. I have watched so many videos on DNA replication, and although this video looks like its been made in the 90s it has made the most sense to me! Thank you so much Medical Institution! Godbless <3

  10. Beautiful. I really don't understan what is disturbing in this video?? It is just amazing animation of DNA-replication. A brief outline.

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