Biological importance of hydrogen bonding Animation Play

Choosing the right optical instrument Whiteboard exercise Play

Differences in size Student activity Play

Double helix Animation Play

From DNA helix to chromosomes Student activity Play

From DNA helix to chromosomes Whiteboard exercise Play

Habitat and lifestyle of the Roman snail (Helix pomatia) Illustration Play

Molluscs (phylum Mollusca) Student activity Play

Palindromic sequences Slideshow Play

Proteins and nucleic acids Whiteboard presentation Play

Proteins and nucleic acids Class activity Play

Restriction enzymes – accurate cuts Student activity Play

Spatial structure of DNA Animation Play

Stability of the spatial structure of DNA Student activity Play

Structure of proteins Student activity Play

Structure of proteins Animation Play

Structure of proteins Whiteboard exercise Play

The double helix Slideshow Play

The double helix Student activity Play

The double helix of DNA Whiteboard exercise Play

The double helix of DNA Student activity Play