TLS Online TPP Program

#Question id: 1127


Which of the following steps does not occur after acetylcholine binds to the muscarinic acetylcholine receptor in heart muscle cells?

#Section 3: Genetics, Cellular and Molecular Biology
  1. dissociation of Giα subunit from the Gβγ complex

  2. binding of the released Giα subunit to K+ channels

  3. hydrolysis of GTP to GDP by Giα                       

  4. opening of K+ channels

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TLS Online TPP Program

#Question id: 13035

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

Each band on the gel represents a different protein (or protein subunit); _____ proteins move through the gel more _____ than_____ proteins and therefore are found nearer the _____ of the gel.

TLS Online TPP Program

#Question id: 13036

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

In isoelectric focusing the protein will move until

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: 13038

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

Please arrange the following steps about ELIZA (Enzyme-linked immunosorbent assay) in chronological order
i. incubate with antibody-enzyme complex that binds primary antibody
ii. coat surface with antigen, block unoccupied sites with nonspecific protein
iii. add substrate, formation of colored product indicates presence of specific antigen
iv. incubate with primary antibody against specific antigen

TLS Online TPP Program

#Question id: 13039

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

 Which of the following is incorrect about a microarray?

TLS Online TPP Program

#Question id: 13040

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

Which of the following is incorrect about Oligonucleotide Design in A microarray?