Can we conclude that President Thomas Jefferson could have fathered Sally Heming's son Eston using the Y chromosome if we know that President Thomas Jefferson's maternal uncle and Eston Hemings Jeffson have the same Y chromosome? No

Yes

Suppose that b. madurai is commonly collected in freshwater areas near boat harbors and marinas but is haraely found in pristine waters. first, design an experiment that tests an adaptation of b. madurai to some aspect of its environment. in your design, be sure to include a question to test, a hypothesis, and a plan for how you will collect and analyze data.