#Question id: 3642
#Section 3: Genetics, Cellular and Molecular Biology
Any piece of DNA which replicates as a single unit is called
#Question id: 3368
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of
#Question id: 538
#Section 4: Fundamentals of Biological Engineering
Which of the following statements are correct about cells that form ATP mainly by glycolysis are
A) anaerobic yeasts.
B) lactic acid bacteria.
C) kidney medulla cells.
#Question id: 115
#Section 2: General Biology
Which of the following is true of sphingolipids?
#Question id: 14274
#Section 5: Bioprocess Engineering and Process Biotechnology
Nicotiana tabacum cells are cultured to high density for
production of polysaccharide gum. The reactor used is a stirred tank,
containing initially 100 litres medium. The maximum specific growth rate of the
culture is 0.18 d-1 and the yield of biomass from substrate is 0.5 g
g-l. The concentration of growth-limiting substrate in the medium is
3% (w/v). The reactor is inoculated with 1.5 g l- 1 cells and
operated in batch until the substrate is virtually exhausted; medium flow is
then started at a rate of 4 l d-1. Fed-batch operation occurs under
quasi-steady-state conditions. Estimate final biomass concentration?
________________