Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function.
Paul Andersen explains how linked genes behave and how linked genes were discovered. Using the example of a fruit fly using interactive software, this video will make you well equipped with knowledge to understand linked genes.
Traits that are controlled by multiple genes and/or influenced by the environment are called polygenic traits. Khan academy provides some notes to help with your learning.
