Q1. Imagine Saccharomyces cerevisiae is grown in a nutrient medium containing the radiosotope 35S. After 48 hr incubation, the 35S would most probable be found in the S. cerevisiae’s what? Carbohydrates; Nucleic acids; Water; Lipids; and Proteins?

Q2. Which pair will have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?