Enzyme activity was monitored over the last two stages of an enzyme extraction-separation process. 0.4 g protein, from Stage 5, converted 46 mmol substrate in 10 sec, and 0.02 g protein, from Stage 6, converted 49 mmol in 30 sec. Calculate the specific activities in units/g at each of the two steps 

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#Question id: 1698

#Section 2: General Biology

An example of a “non-classical” MHC molecule is:

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#Question id: 3760

#Section 3: Genetics, Cellular and Molecular Biology

In E. coli, what is the function of DNA polymerase III?

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#Question id: 1939

#Section 2: General Biology

Which of the following models is an example of a spontaneous organ-specific autoimmune disease?

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#Question id: 15142

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Dot matrix analysis of the amino acid sequences of lambda phage cI (horizontal sequence) and phage P22 c2 (vertical sequence) repressors is shown below. Which one of the following is correct?

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#Question id: 4131

#Section 3: Genetics, Cellular and Molecular Biology

Aminoacyl-tRNA synthetases (amino acid activating enzymes):