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TLS Online TPP Program

#Question id: 3757

Which of the following characteristics of eukaryotic telomeres cause them to replicate differently than the rest of the chromosome?

#Unit 3. Fundamental Processes

  1. the activity of telomerase enzyme

  2. DNA polymerase that cannot replicate the leading strand template to its 5' end

  3. gaps left at the 5' end of the lagging strand template

  4. gaps left at the 3' end of the lagging strand because of the need for a primer

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TLS Online TPP Program

#Question id: 11526

#Unit 6. System Physiology – Plant

Charles Darwin and his son Francis studied plant growth, one of their interests was the bending of plants toward light caused by differential growth, is called
TLS Online TPP Program

#Question id: 1216

#Unit 4. Cell Communication and Cell Signaling

In yeast signal transduction, a yeast cell releases a mating factor, which:
TLS Online TPP Program

#Question id: 31040

#Unit 4. Cell Communication and Cell Signaling

HER3 is an EGF receptor that can bind ligands but lacks:
TLS Online TPP Program

#Question id: 14836

#Unit 5. Developmental Biology

In the case of the French flag model. we assume a source of morphogen at one end and a sink at the other and that the concentrations of morphogen at both ends are kept constant but are different from each other. If the cells can respond to threshold concentrations of the morphogen, Thresholds can represent the
a. amount of morphogen that must bind to receptors to activate an intracellular signaling system. 
b. concentrations of transcription factors required to activate particular genes.
c. concentration at any point effectively provides positional information.
d. amount of morphogen that must bind to receptors to inactivate an extracellular signaling system.
TLS Online TPP Program

#Question id: 18904

#Unit 13. Methods in Biology

Advantages of using short half-life isotopes