#Question id: 1979
#Section 2: General Biology
An immunoglobulin (Ig) molecule, of whatever class, has regions symbolized as C or V, H or L. A light chain has which of these regions?
#Question id: 15174
#Section 6: Plant, Animal and Microbial Biotechnology
#Question id: 16009
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 14276
#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 condition. The fermenter is available 275 d per year with a downtime between runs of 24 h. How much plant cell biomass is produced annually? ___________________
#Question id: 10155
#Section 2: General Biology
Which of the following components carries out oxygen cycle and also produces hydrogen per oxide ?