1. What was the purpose or goal of the Hershey-Chase experiment? 2. How were they able to distinguish DNA from protein? 3. What portion of the virus is made from protein? 4. Explain the results of their experiment.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Afive-year study was carried out on a population of algae in a lake. the study found that the algae population was steadily decreasing in size. over the five-year period this decrease most likely led to

How do scientists hope to use the human genome project as an early warning system