Expansins belong to a large superfamily of proteins, divided into two major expansin families, α-expansins (EXPAs) and β-expansins (EXPBs), what is the function of these two?

a) EXPAs are more active on eudicot cell walls,whereas EXPBs are more active on grass cell walls

b) EXPAs are more active on grass cell walls, whereas EXPBs are more active on eudicot cell walls

c) EXPAs loosen cellulose–cellulose junctions containing xyloglucan, whereas EXPBs loosen wall complexes containing GAX

d) EXPAs loosen wall complexes containing GAX, whereas EXPBs loosen cellulose–cellulose junctions containing xyloglucan

Which combination is correct from some given above functions of expansins,?

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#Question id: 5036

#Unit 5. Developmental Biology

 The experiments of Spemann and Mangold first defined what feature of amphibian embryos?

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#Question id: 28082

#Unit 6. System Physiology – Plant

Which of the following functions as a water‐plastoquinone oxidoreductase

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#Question id: 28243

#Unit 5. Developmental Biology

 which of the following cells exist in a regulatory microenvironment in Drosophila testes where the stem cells for sperm reside

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#Question id: 12036

#Unit 7. System Physiology – Animal

A fasting animal whose energy needs exceed those provided in its diet will draw on its stored resources in which order?

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#Question id: 2604

#Unit 2. Cellular Organization

Best inducer of the lac operon;