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TLS Online TPP Program

#Question id: 1295

What signal is released by endothelial cells to recruit circulating leukocytes?

#SCPH05 I Biotechnology

  1. Vesicle-sequestered P-selectins are moved to the cell surface.

  2. Vesicle-sequestered αLβ2 molecules are moved to the cell surface.

  3. Integrins are cleaved from the plasma membrane so that the extracellular domain can bind leukocytes.

  4. Secreted glycoproteins trigger leukocytes to initiate “rolling” motility.

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TLS Online TPP Program

#Question id: 4943

#SCPH28 | Zoology

In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?
TLS Online TPP Program

#Question id: 2272

#SCPH05 I Biotechnology

Bacteria may be propelled by
TLS Online TPP Program

#Question id: 19205

#SCPH28 | Zoology

Optical biosensor has what kind of biological components in it.

1. Enzyme

2. Antibody

3. DNA/RNA

4. Organ

Which of the following above statements are correct?
TLS Online TPP Program

#Question id: 4344

#SCPH01 Biochemistry

How does the transcription of structural genes in an inducible operon occur?
TLS Online TPP Program

#Question id: 4960

#SCPH06 I Botany

Letʹs say that a hypothetical submersible robot was used to collect samples of sedimentary rock from the sea floor along the section illustrated. The robot moved back and forth along the transect, collecting first from site A, then site III, then site B, then site II, and lastly site D. Assuming that sedimentation has occurred at a constant rate along the transect over the past million years, rearrange the sites mentioned above on the basis of the thickness of the sediments overlying the igneous rock, from thickest to thinnest.