Practice Questions

TLS Online TPP Program

#Question id: 2003

The number of MHC protein combinations possible in a given population is enormous. However, an individual in that population has only a couple of MHC possibilities. Why?

#Section 2: General Biology

The MHC proteins are made from several different gene regions that are capable of rearranging in a number of ways.
MHC proteins from one individual can only be of class I or class II.
Each of the MHC genes has a large number of alleles, but each individual only inherits 2 for each gene.
Once a B cell has matured in the bone marrow, it is limited to two MHC response categories.

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TLS Online TPP Program

#Question id: 1303

#Section 3: Genetics, Cellular and Molecular Biology

What is a primary function of integrins?

TLS Online TPP Program

#Question id: 13097

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

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.

If you take any bacterial gene sequence, before you begin doing any sequence analysis on it, there are six potential open reading frames. Why are there six?

TLS Online TPP Program

#Question id: 3668

#Section 3: Genetics, Cellular and Molecular Biology

In most plasmids, the genes for proteins required for replication are located very close to the ______________ at which their gene are transcribed.

TLS Online TPP Program

#Question id: 13037

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

Which of the following proteins will be most far away from the positively charged electrode during isoelectric focusing in a buffer with pH of 5?

TLS Online TPP Program

#Question id: 1609

#Section 2: General Biology

Which of the following does the mononuclear phagocyte system NOT include?