1. THE BRAIN
V. Genetics
1. Genes - building blocks of heredity, that make up chromosomes
A. Chromosome -threadlike structure in the nucleus of every living cell; contains genes.
- 46 chromosomes, 23 pairs
B. DNA -contains the genetic info that makes up chromosomes

2. THE BRAIN
V. Genetics
Students write down the following questions in your notes. Write your answers in complete sentences
1. Why are scientists interested in twins who were separated at birth?
2. How does cloning differ from natural reproduction?
3. How do genes influence people’s personalities?
Push Play to view a 14 minute vide on genetics. Mac users click on black circle.
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