There are four various sub-viral (Satellite) agents that must utilize other viruses in order to complete their life cycle. Define what a sub-viral agent is and discuss three of the sub-viral agents that need the cell or a so-called “Helper Virus” in order to replicate. (Note: Many times prions are […]

For this Assignment you will think about your individual health and health risks. What genetic diseases or problems might you face during your lifetime? Predisposition to heart disease, breast cancer, diabetes? You may consider your own health risks or those of other individuals such as a family member or friend. […]

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+ […]