Molecular Biology
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Videos and experiments that are suitable for Biology.
DNA Helicase
DNA helicase separates nucleic acid duplexes into their component strands. This video describes the actions of DNA helicase.
DNA polymerase faithfully replicates DNA. This video describes the actions of DNA polymerase.
In a replication fork, two DNA polymerases collaborate to copy the leading-strand template and the lagging-strand template DNA. This video shows the process by which DNA replication occurs.
We travel inside nucleus to see how the DNA replicates.
DNA Structure
This video describes the structure of DNA.
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Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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