Coordinated Science for the 21st Century


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Unit 1: Active Physics

Unit 2: Active Chemistry

Unit 3: Biology

Unit 4: EarthComm

Unit 3: Biology

GOALS

In this activity you will: In this activity you will:

Observe how an inherited trait can be influenced by the environment.
Distinguish between a genotype and a phenotype.
Explain how the environment can influence the development of an inherited characteristic.

What Do You Think?

“You’ve got your mother’s hair and your father’s eyes.” Almost everyone has heard about heredity at some point.

How are personal characteristics passed on from one generation to the next?
Can a personal characteristic be changed?

Write your answer to these questions in your Active Biology log. Be prepared to discuss your ideas with your small group and other members of your class.

For You To Do

In this activity you will use tobacco seeds from parents that carried the characteristics for albinism (no chlorophyll) but
did not show it. Your observations will help you to understand that traits are inherited but are also influenced by the environment.