Thursday, November 8, 2007

Thursday, November 8, 2007

"What is Heredity?"

Bellwork:
1) ______________ make us look the way we do.
2) A feature we have is hair. A trait for that hair is ______________.
3) Genes are found in ___________.

- Review definitions of "genes," "feature," and "trait"
- Define "heredity": the passing of traits from parents to children
- Discuss and poll the variations (differences) between class members ==> look at hairline, earlobes, tongue curling, and pinky fingers
- Introduce larkeys and discuss their features and traits (Populations and Ecosystems Resources book pages 56-57) ==> poll their traits
- Define and discuss "chromosomes" and "alleles"
Chromosomes: What the DNA winds itself into, where our genes are found (23 pairs, 1 from mom and 1 from dad)
Alleles: 1 allele is 1/2 of the pair that makes up a gene, get one from mom and one from dad
- Define both in own words on "Genetics Vocabulary" sheet

Homework: STUDY for Friday's genetics vocabulary quiz (genes, feature, trait, heredity, allele, chromosome)

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