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TLS Online TPP Program

#Question id: 7132

What happens if you introduce the gene myoD into fibroblast cells growing in culture?

#Unit 5. Developmental Biology
  1. The fibroblasts will express muscle-specific proteins, fuse, and form functional muscle in culture.
  2. Nothing will happen because fibroblasts are derived from a different cell population in the embryo than are the muscle precursors that respond to myoD.
  3. The fibroblasts will undergo apoptosis, due to the abnormal effects of myoD on their normal differentiation.
  4. myoD will activate expression of myogenin, but the muscle-specific genes will not be able to activate.
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TLS Online TPP Program

#Question id: 2061

#Unit 2. Cellular Organization

Which of the following types of molecules are hydrophilic and therefore excluded from the hydrophobic portion of the phospholipid bilayer?
TLS Online TPP Program

#Question id: 10505

#Unit 6. System Physiology – Plant

Pseudomonas aeruginosa can alleviate the symptoms of abiotic stress by releasing of antibiotics, the amounts of the compounds released by P. aeruginosa are controlled by
TLS Online TPP Program

#Question id: 11738

#Unit 6. System Physiology – Plant

The ribotide and riboside forms of trans-zeatin can be interconverted, and free trans-zeatin can be formed from the ribotide by the
TLS Online TPP Program

#Question id: 32296

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the structure shown
TLS Online TPP Program

#Question id: 10957

#Unit 7. System Physiology – Animal

Which of the following would most likely be used for prophylaxis of transient ischemic heart attack?