3.14 Chromosomes
http://www.youtube.com/watch?v=TxYoZsso1y8
http://www.youtube.com/watch?v=-GPZCggg2lA&feature=related
- Cell Nucleus > Chromosomes > DNA (Deoxyribonucleic acid) > Genes ( Section)
- DNA shape: Double helix
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\__/<-- Genes ---------> Characteristics Ex: Petal color/Blood type
\_/ (Neucleus) (Protein (Cytoplasm))
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- 1 Chromosome = 1000s of genes
- Genes carry instructions for the build of a protein
- Protein carries characteristics of an individual ex: Blood
- Different spices have different numbers of chromosomes
- Cat: 38
- Chicken: 78
- Chimps: 42
- Humans: 46
- Chromosomes work in pairs (homologous pairs)
- Nature: Based on length of the chromosones
- Homologous Loci = the sames as the other paired with it ( 2 versions of one charactaristic per gene (alleles))
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