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#Question id: 1107


Viagra causes dilation of blood vessels and increased blood flow to the penis, facilitating erection. Viagra acts by inhibiting which of the following events?

#4. Cell Communication and Cell Signaling
  1. hydrolysis of cGMP to GMP

  2. hydrolysis of GTP to GDP

  3. dephosphorylation of cGMP

  4. formation of cGMP from GTP


Answer:- Option(s): 1


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TLS Online TPP Program

#Question id: 1427

#4. Cell Communication and Cell Signaling

 In females, all the cells in a tumor have the same inactive X chromosome. The reason for this is that:

TLS Online TPP Program

#Question id: 1428

#4. Cell Communication and Cell Signaling

Which of the fundamental properties of cancer cells are likely to be lacking in leukemias?

TLS Online TPP Program

#Question id: 1429

#4. Cell Communication and Cell Signaling

Which of the following is NOT a microscopic characteristic of tumor cells?

TLS Online TPP Program

#Question id: 1430

#4. Cell Communication and Cell Signaling

2-hydroxyglutarate is produced in cancer cells:

TLS Online TPP Program

#Question id: 1431

#4. Cell Communication and Cell Signaling

Which of the following is NOT a role for the tumor microenvironment?

TLS Online TPP Program

#Question id: 1432

#4. Cell Communication and Cell Signaling

Which of the following proteins involved in angiogenesis is paired correctly with its function?

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