Khan Academy: Molecular Structure of Dna

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 about the antiparallel structure of DNA strands which can by 5 feet to 3 feet directionality. [9:57]

Explore the molecular structure of DNA in this article. Learn about the components of DNA: nucleotide, nitrogenous base, and phosphate.

A video discussing the molecular structure of DNA. Understand that DNA is made up of a phosphate, deoxyribose sugar, and one of the four nitrogen base. Video also explains how the nitrogen bases pair up to form the double helix...

Learn the roles of DNA polymerases and other replication enzymes. Understand the leading and lagging strands and Okazaki fragments.

A video giving an overview of the molecular structure of glucose. Explore the monosaccharide structure with the linear and ring forms. [9:18]

A video reviewing over the molecular structure of fructose. Video compares fructose with glucose and learn how sucrose is made from both. [9:38]

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

DNA is composed of two strands of nucleotides held together by hydrogen bonding. The strands each run from 5' to 3' and run in antiparallel, or opposite, directions from one another. [9:57]