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One threat to populations within an ecosystem is an invasive species. In the American Southwest, certain areas are being invaded by non-native, Africanized Honey Bees. This aggressive, non native bee is a prolific breeder and some estimate that it won’t bee long before all bees in the lower 48 states […]

Forum- You may pick out one topic or several topics to discuss. Each week the initial post will include a reflection and conclude with a question for the other students to ponder. To be considered substantive, your reply should add significantly to the discussion by building on others’ comments, pointing […]

1. Suppose a particular house plant can have either green leaves or yellow leaves, and that itsflowers can be either purple or white. A true-breeding purple flowered green leaf plant iscrossed with a true-breeding white flowered yellow leaf plant. The F1 plants are selfed toproduce the following F2 plants:green leaves, […]

1. Define DNA. 2. What is the structure (shape) of a DNA molecule? 3. DNA is a polymer of ____________. (Hint: check back to Chapter 2 section 7.) 4. Identify the complementary base pairings in DNA. 5. What is meant by “DNA replication is semi-conservative”? 6. A strand of DNA […]