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Unformatted text preview: b. 1 chromosome 2. X a. 2 chromosome b. Empty ii. 2 normal and 2 abnormal gametes iii. XX crossed with XY 1. Leads to XXX,XXY, X and Y (dies) [xxy will only be able to go on in the future] 5. Primary nondisjunction a. Improper segregation of chromosomes in a DIPLOID 6. Secondary nondisjunction 7. Example of disjunction in a XXY female in Drosophila a. Cross – white XXY female (wwY) x fred eye male (W + Y) 8. End of chapter 4 Missed material from Chapter 3 1. F1 AaBb (branched diagrams) a. 3:1 ratio b. 3 i. = 9/16 A-B-ii. = x/16 A-bb c. 1 i. = x/16 aaB-ii. = x/16 a-b-2. AaBbCc a. ¾ A-Chapter 5 1. Genetic Linkage and Chromosome Mapping...
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- Spring '08
- Genetics, Gamete, XXY, i. XX, X-chromosomes