answers: genes, alleles, nucleotide sequence
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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?. - PowerPoint PPT PresentationTRANSCRIPT
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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.
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• What is a gene?
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Fig. 18.8
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• Draw the cell cycle.• Why does the cell cycle matter?
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Fig. 12.5
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Mitosis
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• Draw a chromosome as it would look at each stage of the cell cycle.
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Fig. 5.28
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Fig. 12.4
Centromere
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• What is a chromosome made of?
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Fig. 16.21
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Histones are critical for DNA structure
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What makes the dominant allele dominant?
Sickle cell?Cystic fibrosis?Huntington’s disease?Blood type?Mendel’s wrinkly peas?
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• What is the central dogma of genetics?
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Fig. 17.4—The Central Dogma of Genetics
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Transcription Analogy
Who is the scribe?
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TranslationAnalogy
Who is the chef?
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Fig. 17.25
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mRNA’s from 5 genes in fruit-fly embryo
Why isn’t every gene expressed in every cell?
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Fig. 18.6
Gene Regulation=
Controlling if a gene makes a functional product (protein) or not
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DNA methylationpg. 358
CH3
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Euchromatin and Heterochromatin
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Fig. 18.10
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Fig. 18.11
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Fig. 18.13
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• Diagram meiosis of the X and Y chromosomes in spermatogenesis… Start with a G1 cell.