Twin Traits

Have you ever met twins or biological siblings with different skin colors? It's not unusual and a helpful video explains why. It includes incomplete dominance, codominance, polygentic traits, and Epistasis, and even explains why...

Explore explanations for the shockingly small size of the T-rex arms. A video lesson considers reasons why a T-rex has small arms through a process of elimination. Maybe the arms provide an advantage to the animal or maybe larger arms...

Comprehend that many human characteristics-all physical traits and possibly many personality traits-are determined by our genetic makeup. These activities demonstate that all physical traits are genetically determined, some evidence...

Freddy's Friendly Fruit Market is under attack by fruit flies, and it is up to your aspiring biologists to solve the crime! By reading and analyzing the phenotypes, detectives determine which fly is responsible. This memorable assignment...

Students create a checklist of traits common in all of their families. Uisng a table, they compare and contrast their family members to non-family members. They also review dominant and recessive traits and discuss how knowing about...

Students investigate genetics as the study of inherited traits. They complete a worksheet.

Students identify inherited traits. In this genetics lesson plan, students participate in a discussion about traits and use a checklist to identify inherited traits. Students complete a hand-out.

Eighth graders investigate the concept of nature versus nurture in human development through this series of lessons.

Epigenetics has more to do with external influences than with our genetic code. Environmental factors can cause different genes to become more or less active in individuals. Watch an informative video to discover how this phenomenon works.

Eighth graders conduct a scientific experiment that help them explain the concept of nature versus nurture.