Question

for #6, the previous valus (A-L distance) is 13.6.

6) What interference value is indicated by the data E) 0.606 A) 0.287 B) 0.713 C) 0.394 D) 1.0 observe 5000 red and 5400 7) From a presumed testcross Aa x aa, in which A represents red and a represents white you nd calculate χ2-154. white progeny. You conduct a χ2 test to see how well the data fit 1:1 segregation a Which is the most reasonable interpretation of these results? A) p 0.005; 1:1 segregation very unlikely, reject hypothesis of 1:1 segregation B) p 0.005; 1:1 segregation cannot be rejected without more data p<0.005; 1:1 segregation very unlikely, reject hypothesis of 1:1 segregation p>0.005; 1:1 segregation cannot be rejected without more data 8) The discase in the pedigree below is inherited as an autosomal recessive trait in dogs. An amateur dog breeder unfamiliar with basic genetic principles decides to mate I1I-1 and 111-2 to produce a litter Based on the pedigree, you predict that there is a % chance that both parents (111-1 & 111-2) are carriers and a- --% chance that the first pup born will be affected by the disease. Assume that II-1 and 11-6 are not carriers B)25:625 C)1:25 D) 66.6; 16.7 A) 50; 12.5 9) Which of the following is not true? A) Hardy-Weinberg equilibrium assumes random matings in an infinitely large population. B) Loss-of-function mutations can display semi-dominant phenotypes. C) Two crossovers between A and B will produce A B recombinant gametes D) In neurospora ascospores produced from a heterozygous mutant cross, 5:3 segregation ratios are sometimes observed. E) The same mutation can display dominant and recessive phenotypes.

Answer 1

6. Inadequate information.

8.

8. WINN NN (Healthy Nn (Casriex) ease) Nn Nn nn nn nnn Heve, nsecessive alele N dlo minant allele % (Both parents are canes)-Lx100 % eoted bot disease L100 The refore, the ang (c)

9. (E) not same mutations but same allele can display dominant and recessive phenotype.