What is the net charge on the dipeptide Arg-Pro at pH 9.0? The table below gives the pKaʹs of the ionizable groups on the free amino acids.

#Question id: 1709

#Section 2: General Biology

What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?

#Question id: 27359

#Section 5: Bioprocess Engineering and Process Biotechnology

#Question id: 10798

#Section 6: Plant, Animal and Microbial Biotechnology

Two other major groups of flavonoids found in flowers and leaves of all green plants. The function of these two flavonoids in plants are____

a) protect plants against being eaten by herbivores and against being infected by microbial pathogens

b) Protect cells from excessive UV-B radiation (280–320 nm) because they accumulate in the epidermal layers of leaves and stems and absorb light strongly in the UV-B region       

c) flavones and flavonols secreted into the soil by legume roots mediate the interaction of legumes and nitrogen-fixing symbionts

d) They are are coloured terpenoid compounds that also serve as accessory pigments in photosynthesis    

Which of the following combination from the above statements is correct?

#Question id: 5924

#General Aptitude

The calendar for the year 2008 will be the same for the year : 

#Question id: 3897

#Section 3: Genetics, Cellular and Molecular Biology

Gene silencing by RNA interference acts by of the target gene.