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TLS Online TPP Program

#Question id: 7125

Which of the following statement regarding Eph receptors and their ephrin ligands is NOT true:

#Unit 5. Developmental Biology

  1. They act through direct cell-cell contact

  2. Eph receptors are tyrosine kinases
  3. Low level of kinase activity of Eph receptor results in repulsion
  4. The interaction between ligands and receptors is important in axon guidance and neural crest cell migration
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TLS Online TPP Program

#Question id: 12124

#Unit 10. Ecological Principles

Which of the following describes the relationship between ants and acacia trees?
TLS Online TPP Program

#Question id: 862

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

lysosomal protein degradation pathways

         Found in

1. Nonselective

a-well-nourished cells

i-containing the pentapeptide Lys-Phe-Glu-Arg-Gln

2- Selective

b-starving cells

TLS Online TPP Program

#Question id: 10233

#Unit 10. Ecological Principles

Which of the following statements is the most appropriate define character displacement?
TLS Online TPP Program

#Question id: 14775

#Unit 13. Methods in Biology

A bag contains 3 black and 5 white balls. One ball is drawn from the bag. What is the probability that the ball is not black ?
TLS Online TPP Program

#Question id: 5705

#Unit 8. Inheritance Biology

The chromosome has been broken at two points, and the segment between them has been inverted. What will be affects of this inversion however, person is heterozygous this abnormality?