Khan Academy: Molecular Genetics: Gel Electrophoresis

Ever wonder how scientists determine how animals are related, or who is guilty of a crime? Discover gel electrophoresis in an easy-to-understand video from a fun biology playlist. Topics include how restriction enzymes create segments of...

Take this nine-question unit test over molecular genetics.

Introduction to genetic engineering, human breeding, recombinant DNA, and bioethics. [6:31]

Learn the molecular structure of RNA. [11:29]

Discover the molecular structure of DNA: nucleotide, nitrogenous base, and phosphate. [13:00]

Simulate the process of gel electrophoresis with this interactive animation. It's a rather detailed and engaging activity.

Learn the molecular structure of DNA including the nucleotide, nitrogenous base, and phosphate. [13:00]

Look at the molecular structure of DNA. Investigate nucleotides, nitrogenous bases, and phosphates. [13:00]

Learn about the molecular structure of RNA. [11:30]

Learn how genetic code links groups of nucleotides in an mRNA to amino acids in a protein. Also learn about start codons, stop codons, and reading frame.