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BIO 304 Lecture 15

BIO 304 Lecture 15. Sex determination: X/A ratio. Sex determination in Drosophila. Sex determination in C. elegans. In humans, an XXY individual is __________. In flies, XXY is ____________. 1 . male; male 2. female; female ✓ 3. male; female 4. female; male .

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BIO 304 Lecture 15

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  1. BIO 304 Lecture 15

  2. Sex determination: X/A ratio

  3. Sex determination in Drosophila

  4. Sex determination in C. elegans

  5. In humans, an XXY individual is __________. In flies, XXY is ____________. 1. male; male 2. female; female ✓ 3. male; female 4. female; male

  6. ZW sex determination system

  7. Environmental control of sex determination

  8. Dosage compensation

  9. Dosage compensation in mammals

  10. Mechanism of X-inactivation

  11. How many Barr bodies would be present in the somatic cells of a female with karyotype 48, XXXX? 1. 1 2. 2 ✓ 3. 3 4. 4

  12. Dosage compensation in Drosophila

  13. Dosage compensation in C. elegans

  14. Can a calico cat ever be a male? How?

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