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calculate the percent recovery for the analysis of a spike. the sample was spiked with 5.00 ml of a 200.0 mg/l solution. the sample matrix concentration was determined to be 30.0 mg/L. The sample matrix volume (excluding the spike) was 90.00 ml. The resulting spike sample concentration was 38.1 mg/l. […]

Q1. Frank Moro has been diagnosed as having severe atherosclerosis and high blood cholesterol levels. He is told that he is at risk for a stroke or a heart attack. First, (a) what foods would you propose that he avoid like the plague? (b) What foods would you suggest he […]

Phenotype for eye colour is determined by a certain locus.E indicates the dominant allele ande indicates the recessive allele. Thecross between a MALE normal fruit fly and a FEMALE white-eyed fruitfly produced this set of offspring:F1Normal Male: 0Normal Female: 45White Eyed Male: 55White Eyed Female: 0Brown eyed Female: 1The normal […]

Sudden addition of oxygen (O2) to a previously anaerobic culture of yeast fermenting grape juice results in a dramatic decrease in the rate of glucose consumption. This is known as “Pasteur effect”. a) Why would the yeast cells consume less glucose in the presence of oxygen? Can you estimate how […]