Which one of the following organisms would you predict has the highest proportion of unsaturated fatty acids in their membranes?

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#Question id: 18001

#XL - S Microbiology

Where in an angiosperm would you find a megasporangium? 

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#Question id: 5241

#XL - T Zoology

Genes a, b, and c are widely spaced in the bacterial genome. Transducing phage from an a+ b+ c+ bacterium were used to infect a culture of a- b- c- cells, and b+ transductants were selected. Which of the following best describes the predicted genotypes of these transductants?

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#Question id: 2364

#XL - Q Biochemistry

An enzyme's specificity is caused by the ______ of the active site.

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#Question id: 19666

#XL - P Chemistry

The Lucas test was carried out on three different compounds: A, B, and C. Compounds A and B were turbid at ambient temperature, while compound C did not become turbid until it was heated. Which one of the compounds is tertiary in structure?

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#Question id: 8773

#XL - T Zoology

Which eukaryotic kingdom includes members that are the result of endosymbioses that included an ancient aerobic bacterium and an ancient cyanobacterium?