#Question id: 2009
#Section 2: General Biology
A child is diagnosed with DiGeorge syndrome (DGS). With which of the following would the child have serious immunological problems?
#Question id: 14275
#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. Fed-batch operation
is carried out for 40 d. What is the final mass of cells in the reactor?
_____________________
#Question id: 10148
#Section 2: General Biology
How light controls the assembly of chloroplast enzymes into supramolecular complexes?
a.) Light regulates the stability of the ternary complex through the ferredoxin–thioredoxin system
b.) Reduced thioredoxin cleaves the disulfide bonds of both phosphoribulokinase and CP12, releasing glyceraldehyde-3-phosphate dehydrogenase and phosphoribulokinase in the catalytically active conformations
c.) Oxidised thioredoxin cleaves the disulfide bonds of both phosphoglyceratekinase and CP12, releasing glyceraldehyde-3-phosphate dehydrogenase and phosphoglyceratekinase in the catalytically active conformations
d.) thioredoxin system oxidised the disulfide bonds and reduces the assembly of between chloroplast enzymes and CP12 and converted into the catalytically active conformations
Which of the following statement is correct?
#Question id: 19148
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 3326
#Section 3: Genetics, Cellular and Molecular Biology
What are the assumptions of Hardy Weinberg equilibrium?