Nitrogen is available to plants only in the form of

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#Question id: 16130

#Unit 13. Methods in Biology

You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS.              

How many units of ß-galactiosidase would you expect to be expressed from deletion 1 in a gln2– mutant? 

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#Question id: 2930

#Unit 2. Cellular Organization

The S. cerevisiae homolog of Xenopus MPF is:

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#Question id: 1003

#Unit 1. Molecules and their Interaction Relevant to Biology

The glucose-alanine cycle provides ________.

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#Question id: 21117

#Unit 12. Applied Biology

The main advantage of hydrogen peroxide electrode transducer is ____________ ?

 High sensitivity

 Simple

 Low selectivity

Which of the following options are correct?

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#Question id: 23038

#Unit 12. Applied Biology

Which of the following factors doesn't affect the rate of degradation by microalgae?