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Answers: Genes, alleles, nucleotide sequence. Questions: You share 99% of your ___________ with a chimpanzee. You share 60% of your ___________ with a banana. 50% of your ___________ came from your mother. What is a gene?. Fig. 18.8. Draw the cell cycle. Why does the cell cycle matter?.
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Answers: Genes, alleles, nucleotide sequence • Questions: • You share 99% of your ___________ with a chimpanzee. • You share 60% of your ___________ with a banana. • 50% of your ___________ came from your mother.
Draw the cell cycle. • Why does the cell cycle matter?
Draw a chromosome as it would look at each stage of the cell cycle.
Fig. 12.4 Centromere
What makes the dominant allele dominant? • Sickle cell? • Cystic fibrosis? • Huntington’s disease? • Blood type? • Mendel’s wrinkly peas?
Transcription Analogy Who is the scribe?
TranslationAnalogy Who is the chef?
mRNA’s from 5 genes in fruit-fly embryoWhy isn’t every gene expressed in every cell?
Fig. 18.6Gene Regulation=Controlling if a gene makes a functional product (protein) or not
http://cnx.org/content/m26565/latest/graphics35.jpg Euchromatin and Heterochromatin
Diagram meiosis of the X and Y chromosomes in spermatogenesis… Start with a G1 cell.