Khan Academy: Molecular Genetics: Dna

Introduction to DNA cloning. [11:07]

Learn how DNA is copied (replication) and how information in DNA can be used to make a protein. [15:23]

Take this nine-question unit test over molecular genetics.

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

Understand the roles of DNA polymerase, primase, ligase, helicase and topoisomerase in DNA replication. An explanation of leading and lagging strands. [10:18]

Understand how DNA is composed of two strands of nucleotides held together by hydrogen bonding and see the strands each run in antiparallel directions from one another. [9:56]

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

Introduction to gel electrophoresis and how it's used to separate DNA fragments or other macromolecules. [10:59]

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

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