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TLS Online TPP Program

#Question id: 1471

Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells?

#Unit 4. Cell Communication and Cell Signaling

  1. Proto-oncogenes first arose from viral infections.

  2. Proto-oncogenes are mutant versions of normal genes.

  3. Proto-oncogenes are genetic "junk."

  4. Proto-oncogenes normally help regulate cell division.

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TLS Online TPP Program

#Question id: 31120

#Unit 2. Cellular Organization

When a membrane is warmed through the transition temperature, Tm, what will happen?
TLS Online TPP Program

#Question id: 19091

#Unit 4. Cell Communication and Cell Signaling

Fusicoccin stimulates
a) Transient growth in stem
b) Plant hormones
c) Proton extrusion
d) Hyperpolarization of membrane
e) Tumor formation
TLS Online TPP Program

#Question id: 7112

#Unit 5. Developmental Biology

Although the vertebrate body plan outwardly displays a mirror-image symmetry with regard to left and right, the internal organs are not symmetrical. How does this left-right asymmetry develop?
TLS Online TPP Program

#Question id: 30056

#Unit 7. System Physiology – Animal

The highest arterial pressure in the arteries after blood has been ejected from the left ventricle during systole, known as:
TLS Online TPP Program

#Question id: 1809

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of αβ T-cells?