1. 1.) Write down traits you were born with and traits you acquired over time
2.) Did you acquire traits from anyone other than your parents? (ex. Grandparents, aunts/uncles) If yes, what?
Warm Ups

2. Heredity & Environment
Group 5!

3. Heredity is the genetic transmission of characteristics from parents to offspring
iKI4c this is a song about heredity!
Heredity

4. Nature vs. Nuture Nature: Refers to characteristics a person inherits
Nurture: environmental factors
Sir Francis Galton
Became one of the first to preach importance of nature.
He wrote a book called Hereditary genius, he analyzed over 1,000 families, politicians, religious leaders, artists, and scholars.
His studies showed that success ran in families who were successful.
Nature vs. Nuture

5. Genes: Are the basic units of heredity, genes are reproduced and passed on.
All of the effects that genes have on behavior occur through their role in building and modifying the physical structures of the body
Genes & Behavior

6. Identical Twins: Developed from a single fertilized egg & develop the same genes.
Twin Studies

7. Because identical twins share the same genes and same environment, studying them is one way to find out whether a trait is inherited or learned.
Twin Studies Cont.…

8. Fraternal Twins: Develop from 2 fertilized eggs & have different traits.
Twins Studies Cont..

9. 1.) How much do genetic factors contribute to our behavior?
2.) Do you inherit your genes or develop your genes?
3.) Scenario: A set of twins act the same way but one twin likes sports and the other twin likes reading, what causes that trait?
Discussion Questions

10. Do you learn to be a good athlete vs. being born a good athlete
Do you learn to do well in school vs. being born to do well in school
Activity - Debate