BIO 325 - Fall 2009 - Sample questions - Key

BIO 325 - Fall 2009 - Sample questions - Key - GENETICS(BIO...

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GENETICS (BIO 325) Fall 2009 Key - Sample questions __________________________________________________________________________________ 1. (a) 1/4 (b) 1/8 (c) 1/8 (d) 1/16 2. (1/2) 10 3. 1/16. 4. 2/3 x 2/3 x 1/4 = 1/9 5. (a) Submetacentric (b) 6. (a) 7. (d) 8. (i) X-linked dominant (ii) Y-linked 9. (a) not possible (b) not possible (c) Meiosis II (d) Meiosis I (e) Mitosis 10. Two copies each of the histones H2A, H2B, H3, H4, and approximately 150 bp of DNA. 11. Male telomere centromere telomere
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12. Yellow 13. (d) 14. (i) Autosomal recessive (ii) 2/3 x 1/4 = 1/6 15. (i) 3.85 (ii) 3 (iii) Between 0.5 and 0.1 (iv) Accepted 16. (a) Genes A and B are not assorting independently. (b) The chi-square value is 16.11. The hypothesis is rejected. 17. v + /v ; b + /b x v/v ; b + /b 18. 21 19. 4% 20. 0.036 x 0.036 = 0.001296 21. The order is a-----d---------b and the distances between a and d is 2.7 map units and between d and b is 4.4 map units. 22. 0.012 23. (d) 24. The child with the blood group O has the genotype i/i, therefore both parents must be carrying the recessive i allele. The child with the AB blood group indicates that one of the parents has
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BIO 325 - Fall 2009 - Sample questions - Key - GENETICS(BIO...

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