Using only random VDJ recombination, from 40 V, 23 D, and 6 J gene segments, what are the number of possible variable regions of an antigen receptor molecule?

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#Question id: 2063

#Section 3: Genetics, Cellular and Molecular Biology

In what way do the membranes of a eukaryotic cell vary?

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#Question id: 19141

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

Which substitution matrix should you prefer to find distantly related orthologs

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#Question id: 2110

#Section 3: Genetics, Cellular and Molecular Biology

According to the fluid mosaic model of cell membranes, phospholipids:

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#Question id: 14480

#Section 1: Engineering Mathematics

Probability than a leap year selected at random will have 53 Sundays.

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#Question id: 410

#Section 4: Fundamentals of Biological Engineering

For the reaction A -> B, the Keq' is 10^4.  If a reaction mixture originally contains 1 mmol of A and no B, which one of the following must be true?