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TLS Online TPP Program

#Question id: 11203

Which of the following statements about action potentials is correct?

#Unit 7. System Physiology – Animal
  1. Action potentials for a given neuron vary in magnitude.
  2. Action potentials for a given neuron vary in duration.
  3. Action potentials are propagated down the length of the axon.
  4. Movement of ions during the action potential occurs mostly through the sodium pump.
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TLS Online TPP Program

#Question id: 2519

#Unit 2. Cellular Organization

If you compared under the microscope a contracted sarcomere to a relaxed sarcomere, which of the following regions would not differ in width?
TLS Online TPP Program

#Question id: 12861

#General Aptitude

The length of two sides of an isosceles triangle are 15 and 22 respectively. What are the possible values of perimeter ?
TLS Online TPP Program

#Question id: 12593

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland and MacArthur and Wilson's island biogeography principles to answer the following questions.

Which island would likely exhibit the most impoverished species diversity?
TLS Online TPP Program

#Question id: 28751

#Unit 2. Cellular Organization

Which of the following statements is incorrect about Biosynthetic function of animal peroxisomes?
TLS Online TPP Program

#Question id: 33480

#Unit 2. Cellular Organization

Finding: The overall degree of divergence between two homologous exons in related genes corresponds to the differences between the polypeptides.

Reason: Overall degree of divergence between two homologous exons is mostly a result of base substitutions.