HSCs express which type of cell-surface molecule, which is the receptor for stem cell factor (SCF). It is a cytokine that exists in both membrane-bound and soluble forms and the SCF-surface molecules interaction is critical for the development, in adult animals, of multipotential progenitor cells (MPPs).  Which type of surface molecules HSCs express?

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#Question id: 8933

#XL - S Microbiology

At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?

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#Question id: 10704

#XL - T Zoology

Imagine five forest communities, each with one hundred individuals distributed among four different tree species (W, X, Y, and Z). Which forest community would be most diverse?

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#Question id: 1551

#XL - S Microbiology

function of CR2

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#Question id: 3690

#XL - S Microbiology

The DNA polymerase is a template-directed enzyme that synthesizes new complementary strand from a parent strand but it requires the existing short nucleotide sequence for its elongation. Which of the following enzyme is required for the synthesis of this primer?

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#Question id: 27253

#XL - T Zoology

The overall conclusion of the Hershey-Chase experiment was that