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: 10145

#Unit 6. System Physiology – Plant

The transfer of a phosphoryl group to 3-phosphoglycerate, yielding formation of 1,3-bisphosphoglycerate is catalyze by

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#Question id: 7762

#Unit 5. Developmental Biology

Correlation between life span and the ability of fibroblasts to repair DNA in various mammalian species, Repair capacity is represented in autoradiography by the number of grains from radioactive thymidine per cell nucleus. According to graph, which factor exist on x-axis ? Note that the y-axis (life span) is logarithmic.

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#Question id: 10453

#Unit 6. System Physiology – Plant

Studies have shown that a mutants in fact do not survive in the field under conditions of full sunlight due to photooxidative damage.

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#Question id: 15297

#Unit 5. Developmental Biology

 Which of the following statement is correct regarding mammalian cleavage?

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#Question id: 4212

#Unit 3. Fundamental Processes

Which statement describes the correct order of events in translation elongation?