2010 Bio 320 Midterm 1 Key

2010 Bio 320 Midterm 1 Key - BIO320 Spring 2010 Midterm 1...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: BIO320 Spring 2010 Midterm 1 Answer Key Blue (0) Orange (1) Red(2) Green (3) 1. A B C A 2. B C A A 3. D B B A 4. C C B D 5. E A D C 6. B E D D 7. E C B B 8. A E E A 9. D A C A 10. C C B E 11. B D C D 12. A B A C 13. C B A A 14. A D B A 15. B D B A 16. E B B C 17. B C E B 18. D A C B 19. D D D A 20. A A E C Short answer: BLUE (0). SA1. a. If flower color is inherited as a single gene ( P ) where one allele is incompletely dominant over the other, then plants with lavender colored plants must be heterozygous ( Pp ) since this is the color observed in F1 and purple and white must be homozygous ( PP and pp , respectively). Therefore the predicted ratios from the F1 monohybrid cross are ¼ PP purple: ½ Pp lavender: ¼ pp white. Given that there are 800 progeny, this means that 200 should be purple, 400 should be lavender and 200 should be white. b. 482. c. 2. d. reject. e. χ 2 calc = 482 > χ 2 table (p = 0.05 2 df) = 5.99. Therefore the differences are not likely due to chance. SA2. a . RNA; b. purine; c. see picture. d. see picture. e. 5’ AGGCTTAGAC 3’ SA3. 1. Autosomes; 2. Interference; 3. Transition; 4. Phosphodiester; 5. Okazaki fragments; 6. Alleles SA4. a. The distribution of flower color in the F2 progeny is 400 purple: 807 pink: 393 white which represents a 1:2:1 ratio. This ratio indicates that flower color is inherited as a single gene with two alleles where purple is incompletely...
View Full Document

{[ snackBarMessage ]}

Page1 / 3

2010 Bio 320 Midterm 1 Key - BIO320 Spring 2010 Midterm 1...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online