Khan Academy: Antiparallel Structure of Dna Strands

Learn the basics of the structure of DNA strands in this video. [9:56]

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]

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

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

Sal Khan presents structures of organic molecules using line (or line-angle) diagrams. [7:28]

An article reviewing the structure of eukaryotic cells. Learn how the cells have a nucleus, organelles, and chromosomes.

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]

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