Q1. Genes A/a and B/b are linked and known to be 20 map units apart. Individuals heterozygous for both of these genes (genotypes= AB/ab) were mated with each other. If there 2000 offspring from this cross, how several of the offspring will you expect to show Ab or aB phenotypes?

Q2. A fabrication company wants to enhance capacity by adding a new machine. The firm is considering proposals from vendor A and vendor B. The fixed costs for machine A are $90,000 and for machine B, $65,000. The variable cost for A is $15.00 per unit and for B, $16.00. The revenue made by the units processed on these machines is $21 per unit. If the estimated output is 30000 units, which machine must be purchased?