Charlotte's babies are born in the barn, and they float away, to Wilbur's dismay, in a process called ballooning. The spiderlings tell Wilbur that they are using the breeze to fly away. This ballooning process is important because it reduces competition between siblings and allows for genetic diversity.

Scientists have sequenced the tomato genome because the taste, size, color and more of a tomato is determined by their genes.

Peter gets home after being bitten by a genetically-engineered spider during a school field trip. He falls ill from the spider's venom, and while he's asleep the venom alters his genetic makeup. He wakes up to find his body has changed dramatically overnight.

A trip to a cell to hunt for DNA teaches the StoryBots about how DNA is structured with Ms. Polymerase.

Malcolm realizes how similar he is to his half cousin. They are similar in their intelligence, their mannerisms, and their interets.