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SWBAT: identify causes, symptoms and conditions of different chromosomal disorders Reflection:

SWBAT: identify causes, symptoms and conditions of different chromosomal disorders Reflection:. Thursday March 28 th 2013 Agenda: Warm-ups Sex-linked traits Pedigrees Pedigree practice Sex-linked traits w/s.

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SWBAT: identify causes, symptoms and conditions of different chromosomal disorders Reflection:

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  1. SWBAT: identify causes, symptoms and conditions of different chromosomal disorders Reflection: Thursday March 28th 2013 Agenda: Warm-ups Sex-linked traits Pedigrees Pedigree practice Sex-linked traits w/s

  2. SWBAT:identify causes, symptoms and conditions of different chromosomal disorders Reflection: • Warm-ups • What are the 3 ways that caused the 9 chromosomal disorders from the karyotypes that we had in class? • Which of the following can be observed by a karyotype: • Colorblindness • Turner’s syndrome • Trisomy 21 3. A women is homozygous for A blood type. A man has AB blood type. What is the probability that the couple’s child will be type B blood?

  3. SWBAT:identify causes, symptoms and conditions of different chromosomal disorders Reflection:

  4. SWBAT:identify causes, symptoms and conditions of different chromosomal disorders Reflection: Sex-Linked Traits • Examples: Colorblindness, hemophilia… • “carrier” = has the gene, but doesn’t show the trait • Colorblindness (b) is a recessive, X-linked trait • XBY = Normal Male • XBXB = Normal female • XBXb = Carrier female • XbXb = colorblind female • XbY = colorblind male • Males cannot be carriers for X-linked traits. Think about why this is true.

  5. SWBAT:identify causes, symptoms and conditions of different chromosomal disorders Reflection:

  6. SWBAT:identify causes, symptoms and conditions of different chromosomal disorders Reflection: • Pedigree

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