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TLS Online TPP Program

#Question id: 11544

When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then ________.

#Unit 7. System Physiology – Animal
  1. the steroid and polypeptide hormones must use the same biochemical mechanisms
  2. the steroid and polypeptide hormones must bind to the same receptor protein
  3. the steroid hormones affect the synthesis of effector proteins, whereas polypeptide hormones activate effector proteins already present in the cell

  4. the steroid hormones affect the activity of certain proteins within the cell, whereas polypeptide hormones directly affect the processing of mRNA

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TLS Online TPP Program

#Question id: 1461

#Unit 4. Cell Communication and Cell Signaling

Which of the following correctly describes a Philadelphia chromosome?
TLS Online TPP Program

#Question id: 11458

#Unit 7. System Physiology – Animal

A person able to hear only low-frequency sounds would probably have which of the following structural problems in the ear?
TLS Online TPP Program

#Question id: 27379

#Unit 1. Molecules and their Interaction Relevant to Biology

Atomic radii can be measure by calculation
TLS Online TPP Program

#Question id: 29036

#Unit 11. Evolution and Behavior

Darwin’s hypothesis is that Exaggerated secondary sexual traits are favoured by sexual selection because they increase male mating success but more than higher exaggeration secondary sexual traits that leads to___ 
TLS Online TPP Program

#Question id: 4397

#Unit 3. Fundamental Processes

Which of the following will prevent the activation of RNA polymerase, but not necessarily the assembly of eukaryotic general transcription factors at the promoter?