In SDS PAGE sharpen bands are achieved by utilising differences in ionic strength and pH between the electrophoresis buffer (pH 8.8) and the stacking gel buffer (pH 6.8) and involves a phenomenon known as

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#Question id: 11494

#Unit 2. Cellular Organization

How do aquaporins allow the passage of H2O but not H3O+?

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#Question id: 28512

#Unit 5. Developmental Biology

Fgf10 is function as positive feedback factor in different ways such as___

a) to maintain the activation of both Wnt2b and Tbx5

b) to tells the surface ectoderm to continue to make Fgf8, and the surface ectoderm continues to tell the underlying mesoderm to make Fgf10

c) to maintain the activation of both Wnt3a and Tbx4

d) to tell the mesenchyme cells directly beneath it to continue making Fgf10

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#Question id: 4981

#Unit 11. Evolution and Behavior

An organism has a relatively large number of Hox genes in its genome. Which of the following is not true of this organism?

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#Question id: 703

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements concerning protein domains is true?

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#Question id: 29513

#Unit 6. System Physiology – Plant

Members of the Poaceae family produced defensive secondary metabolites, which are derived from tryptophan, known as