In a chemostat, the dilution rate (D) is 0.5 h^-1 and the specific growth rate (μ) of the organism equals the dilution rate. Calculate the residence time of the culture in minutes.

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#Question id: 11723

#XL - R Botany

During the α-amylase secretion pathway, a mutation will be found in the sequence of gibberellic acid response element (GARE) the what will caused;

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#Question id: 11728

#XL - R Botany

Which of the following is the precursor of  Cytokinin?

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#Question id: 11733

#XL - R Botany

The synthetic cytokinin compounds that have not been identified in plants, these are;

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#Question id: 11737

#XL - R Botany

Cytokinins have been shown to have effects on many physiological and developmental processes, including____

a) Leaf senescence

b) Apical dominance

c) Gametophytic  development

d) Vascular development

e) Breaking of bud dormancy

f) Causing bud dormancy

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#Question id: 11743

#XL - R Botany

The wall between the two mature sieve tube elements contain a sieve plates, these sieve plate pores are open —that is, unobstructed by

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#Question id: 11744

#XL - R Botany

Large pores in cell walls are the prominent feature of sieve elements, the sieve area pores range in diameter from