The disease phenylketonuria is an example of how what?

A. a single gene can only affect a single trait.

B. a single gene can affect multiple traits.

C. all of these

Which best describes the different modes of bacterial reproduction? ... A. In binary fission, the two new cells that are formed are susceptible to the same antibiotic ... B.

Explain the significance of reaction coupling in living systems. how is it used, and what does it allow living systems to do that they would not be able to do otherwise?

A precipitin test is used to distinguish between animal and human blood. a. True b. False

The pink parts of the graph represent the pH range where some common freshwater organisms survive. If the pH of a lake were to start at 3 and become more basic, at what pH would these freshwater organisms begin to die out?

What is the function of nucleic acids a. store genetic information b. catalyze reactions c. store energy d. none of the above

Critical concentration is Critical concentration is: a. the concentration of tubulin dimers at which assembly is balanced with disassembly. b. the concentration of tubulin dimers at which assembly occurs primarily. c.

Why do all organisms take in matter and rearrange atoms through chemical reactions to form molecules essential for life?

A biologist counts the number of zebras in a population each year and notices an increase in the zebra population. Which describes the biologist's actions? experimentation inference observation interacting

Which is one of the seven characteristics that Mendel observed in pea plants? flower size seed texture leaf shape stem color

When enough experimental data support a hypothesis, the hypothesis becomes a what