An experiment requires the use of 5 x 107 units of enzyme. The price for the enzyme is quoted for katal amounts. Allowing for a 20% excess for wastage, pipetting, and so forth, what approximate round number of katals of enzyme would you purchase? 

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#Question id: 14365

#Section 5: Bioprocess Engineering and Process Biotechnology

0.1 mg of a quaternary structured enzyme (Mr 486 000) with four active sites converts 48 iimol substrate/10 sec. Calculate turnover number (min-1) 

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#Question id: 1962

#Section 2: General Biology

Which cells and which signaling molecules are responsible for initiating an inflammatory response? 

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#Question id: 15607

#Section 6: Plant, Animal and Microbial Biotechnology

In gene transformation over high expression can be achieved by expressing the gene 

1. Inducible promoter

2. Constitutive  promoter

3. Terminator sequence

4. Increasing copy no. of gene

Which of the following are correct

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#Question id: 1708

#Section 2: General Biology

When antigen reaches a lymph node in a primed animal:

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#Question id: 1900

#Section 2: General Biology

Which of the following statements is TRUE of the human major histocompatibility complex (MHC)?