Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)

ADP + Pi ⇌ ATP

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In angiosperms, mature male gametophyte may consist of:

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In Polygonum-type embryo sac formation:

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In a mature Polygonum-type embryo sac:

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Which of the following embryo sac types are monosporic?

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Exine and intine of pollen:

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Factors affecting pollen viability include: