Q1. In a continuous culture of a bacterium running at D=0.345 hr-1 glucose is the limiting substrate with a residual concentration of 0.01 g/l. The yield coefficient based on glucose is 0.5 g cell/g glucose. What will occur if the feed glucose is increased by 0.5 g/l while the dilution rate is maintained at the same level? Design the answer of the culture in terms of x, S and ? after the feed concentration change until after new steady state is reached. Express physically what happens?

Q2. What proportion of male children in a large family will finally develop baldness in a marriage where both husband and wife are heterozygotes with genotype HnHb?