Which one of the following statements best describes the major difference between sex determination in drosophila and in humans? a. in drosophila, the ratio of x chromosomes to the number of haploid sets of autosomes determines the sex while in humans the presence of the y chromosome determines maleness. b. in drosophila, the absence of a y chromosome determines femaleness while in humans the presence of the y chromosome determines maleness. c. in drosophila, the ratio of x chromosomes to the number of haploid sets of autosomes determines the sex while in humans the presence of at least two x-chromosomes determines femaleness.

Describe pasteur’s results and how they disprove spontaneous generation.

Cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? view available hint(s) cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat? direct microscopic counts filtration count culture serial dilution count culture plate count culture

Match the description of each organism to the appropriate category