A 68-year-old woman with hematemesis has heartburn and stomach pain. Endoscopy shows inflammation involving the gastric body and antrum as well as a small gastric ulcer. Biopsies were positive for Helicobacter pylori. H. pylori damages the gastric mucosa primarily by increasing mucosal levels of which substance?

TLS Online TPP Program

#Question id: 23869

#Unit 13. Methods in Biology

Which of the following statements is most likely true?

TLS Online TPP Program

#Question id: 28922

#Unit 4. Cell Communication and Cell Signaling

Hedgehog binding receptor is called___

TLS Online TPP Program

#Question id: 19090

#Unit 4. Cell Communication and Cell Signaling

Fusicoccin effects role of which plant hormone?

a) Gibberellin

b) Auxin

c) Cytokinin

d) ABA

TLS Online TPP Program

#Question id: 2424

#Unit 2. Cellular Organization

Which of the following statements correctly describe(s) actin?

a. Actin is a highly conserved protein.

b. Multiple actin genes may be found in higher eukaryotes.

c. Actin is the most abundant protein in a eukaryotic cell.

d. Individual actin filaments can be observed by electron microscopy.

e. One end of an actin filament is different from the other. 

TLS Online TPP Program

#Question id: 19699

#Unit 13. Methods in Biology

What is Einthoven’s Law?