#Question id: 5077
#SCPH06 I Botany
Humans and mice heterozygous for loss-of-function mutations in Pax6 have:
#Question id: 14309
#SCPH05 I Biotechnology
Glucose is converted to ethanol by immobilized yeast cells
entrapped in gel beads. The specific rate of ethanol production is: qP
= 0.2 g ethanol/g-cell-h. The effectiveness factor for an average bead is 0.8.
Each bead contains 50 g/L of cells. The voids volume in the column is 40%.
Assume growth is negligible (all glucose is converted into ethanol). The feed
flow rate is F = 400 l/h and glucose concentration in the feed is S0i
= 150 g glucose/l. The diameter of the column is 1 m and the yield coefficient
is about 0.49 g ethanol/g glucose. The column height is 4 m. What is the
glucose conversion at the exit of the column?
#Question id: 3287
#SCPH06 I Botany
Which statement is not an assumption of the Hardy–Weinberg law?
a. The allelic frequencies (p and q) are equal.
b. The population is randomly mating.
c. The population is large.
d. Locus is di-allelic
#Question id: 14302
#SCPH05 I Biotechnology
Pseudomonas sp. has a mass doubling time of 2.4 h when grown
on acetate. The saturation constant using this substrate is 1.3 g/l (which is
unusually high), and cell yield on acetate is 0.46 g cell/g acetate. If we
operate a chemostat on a feed stream containing 38 g/l acetate, find the
Substrate concentration when the dilution rate is 0.8Dmax?
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#Question id: 4341
#SCPH01 Biochemistry
Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the promoter for the lac operon to the region between the beta galactosidase (lacZ) gene and the permease (lacY) gene, which of the following results would be most likely?