Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?

#Question id: 15887

#SCPH05 I Biotechnology

#Question id: 1598

#SCPH05 I Biotechnology

Which of the following polypeptide is important for the expression of MHC I on the cell membrane?

#Question id: 3667

#SCPH01 Biochemistry

In an ______________ plasmid, replication occurs in two stages. In the first stage, the double stranded circular plasmid DNA replicates to form another double-stranded circular DNA and a single-stranded circular DNA, In the second stage, the complementary strand is synthesized on the single-stranded DNA to make another double-stranded DNA.

#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?

                        __________________                                      

#Question id: 22943

#I Life Science/ Life Sciences Group – I-V