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Nature vs. Nurture
Nature Vs. Nurture Controversy• What is caused by heredity and what is caused by
the environment.• Heredity: characteristics obtained from genes.• Environment: a person’s surroundings, which
influence the person’s characteristics.• Nature= genes and heredity• Nurture = environment and how you were raised.
• Twins offer a way to find out!
Famous Twins
Twins
• Dizygotic: twins who develop from different eggs fertilized by different sperm. Not identical. Like siblings born at the same time.
• Monozygotic: twins who develop from one fertilized egg. Identical twins. Same DNA
• Tell your partner the difference between these two twins.
What is the Same?
• So if twin genes are the same then will they have the same abilities, interests, and personalities. In other words, will they develop the same?
• Write down there two traits you think twins would share because of their same DNA.– Not Physical Traits
Separated at Birth
• http://www.youtube.com/watch?v=Wd5Y3-F79LY
• What are similarities and differences between these two sisters.
• Which traits do you think were due to nature (genes) and which to nurture (environment)?
We’re Still Learning
• There have not been enough twin studies done to be sure of everything determined by genes but we do see it playing a big part in our development!
What Did We Learn
• Fill out Nature vs. Nurture worksheet.
Parenting Styles
Silent Reading
• Read and take notes on pg. 299 Parenting Styles.
Parenting Style Reflection
• #4 you need to get comments from your parents.