DragonflyTV . Home Page. The Tinkering Studio: Experiments with art, science, technology, and delightful ideas. Agricultural Research Service. Immune Attack. Club Penguin - Waddle around and meet new friends! The Diffendoofer School Song. Welcome to Webkinz® - a Ganz website.
Save The Words. Project Dragonfly. The Network for Citizen Science Projects & Resources. How Things Work - How Things Work Home Page. Climate Change and the Polar Regions - Issue 20, June 2010. Museum Education: Kids' Corner. Kinetic City: Eggshell colour. The colour of eggshells is the result of pigments being deposited during egg formation within the oviduct.
The type of pigment depends upon the breed and is genetically determined. In 1933, Professor Punnett demonstrated that the blue egg factor is a dominant gene (genetic symbol O). All eggs are initially white, and shell colour is the result of the pigments called porphyrins being deposited while the eggs are in the process of formation. Windows to the Universe.
Cool Science for Curious Kids. Rader's CHEM4KIDS.COM. Rader's BIOLOGY4KIDS.COM. Discovery Education. Crayon Physics Deluxe.