Free Science Videos and Lectures

We travel inside nucleus to see how the DNA replicates.

When DNA replicates its strands are separated by enzine helicase.
Single-stranded DNA binding proteines keep the strands from...

This science video contains:
dna, replication, enzine helicase, strand, polymerase, encode, okazaki fragments, rna primase, rna primer, dna ligase

HIV replication is a complex multi-staged process that includes crucial steps taking place on the exterior as well as the interior of the target host cell.

The first three steps involved in cell...

This science video contains:
cell, replication, nrti, nnrti, virodna, protease inhibitor, hiv, host, attachment, binding, fusion

Scientists listened to animals playing and they noticed something that appeared to them to be laughter. They studied this behavior for couple of years before acturally realizing that it is...

This science video contains:
frequency, rat, rats, scientist, laugh, laughter, laughing, sound, tickle, tickling