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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: 129

#Section 2: General Biology

Glycine is not a stereoisomer because
TLS Online TPP Program

#Question id: 27256

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following statement is NOT true?
TLS Online TPP Program

#Question id: 12916

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

Which statement is correct for Zoo blotting?
TLS Online TPP Program

#Question id: 2002

#Section 2: General Biology

What accounts for antibody switching (i.e., the switch of one B cell from producing one class of antibody to another antibody class that is responsive to the same antigen)?
TLS Online TPP Program

#Question id: 1134

#Section 3: Genetics, Cellular and Molecular Biology

Arrange the following proteins in the proper order in which they become activated in the MAPK signaling pathway:

a. MAP kinase                         b. MEK           c. Ras              d. Raf              e. RTK