Suppose you innoculate a PR broth with a slow-growing fermenter. After 48 hours, you see slight turbidity but score it as (-/-). Is this result a false positive or a false negative? Is this a result of roor specificity or poor sensitivity of the test system? Early formulations of this […]

Q. You find out a mutant yeast strain that cannot grow while provided with pyruvate as its sole carbohydrate, though it grows normally when given glucose as a carbon energy source; you call this the Pyr- trait. Wild-type yeast can grow well using either carbon source; you designate this Pyr+ […]

1. Sickle-cell and malaria: Sickle-cell anemia is hereditary condition that is common among African-Americans and can cause medical problems. Some biologists suggest that the sickle-cell trait protects against malaria. That would explain why it is found in people whose ancestors originally came from Africa, where malaria is common. A study […]

Your completed case study should be between 750-1000 words, and all sources must be properly cited using APA format. Amy is cooking dinner for her family. She moves to pull a pot off the stove and accidently touches the burner. She reflexively pulls her finger away from the stove and […]