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TLS Online TPP Program

#Question id: 27377

Calculate the number of electrons, protons and neutrons in 1 mole of 16O−2 ions.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. No. of electrons = 6.022×1022, No. of protons = 4.8×1027, No. of neutrons = 4.8×1024
  2. No. of electrons = 6.022×1023, No. of protons = 4.8×1026, No. of neutrons = 4.8×1024
  3. No. of electrons = 6.022×1024, No. of protons = 4.8×1024, No. of neutrons = 4.8×1024
  4. No. of electrons = 6.022×1025, No. of protons = 4.8×1026, No. of neutrons = 4.8×1024
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TLS Online TPP Program

#Question id: 1402

#Unit 4. Cell Communication and Cell Signaling

Which of the following oncoproteins possess(es) protein kinase activity?
TLS Online TPP Program

#Question id: 1403

#Unit 4. Cell Communication and Cell Signaling

Tumor-suppressor genes encode proteins with which of the following functions?

a. growth-promoting               b. growth-arresting                  c. pro-apoptotic

d. anti-apoptotic                      e. DNA repair
TLS Online TPP Program

#Question id: 1404

#Unit 4. Cell Communication and Cell Signaling

Which of the following are transcription factors?
TLS Online TPP Program

#Question id: 1405

#Unit 4. Cell Communication and Cell Signaling

A gain-of-function mutation in which of the following would have the same effect as a gain-of-function mutation in Ras?
TLS Online TPP Program

#Question id: 1406

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a consequence of p53 stabilization?

a. stabilization of Cdc25A      b. activation of ATM                c. blocked apoptosis

d. transcription of p21                        e. DNA repair
TLS Online TPP Program

#Question id: 1407

#Unit 4. Cell Communication and Cell Signaling

Which of the following is pro-apoptotic?

a. Bax              b. Bcl-2                       c. p53              d. protein kinase B      e. PTEN