3. Which of the following researchers used radioac-

tive markers in experiments to show that DNA was

the genetic material in cells?

a. Frederick Griffith

b. Oswald Avery

C. Alfred Hershey and Martha Chase

d. James Watson and Francis Crick

The seeds in a pine tree are borne in the: stigma ovulate cone microsporangiate cone microsporangium

Pseudomonas aeruginosa is a non-fermenting GNR, it grows on EMB. Which of the following would be true (Circle none, one or many) a. Pseudomonas aeruginosa would be colorless on EMB b. Pseudomonas ferments mannitol c. Pseudomonas ferments lactose d.

What are primary cells?

In winter many dogs grow a thick coat of fur. This is an example of

In an experiment, sugar cookies are ground up into small particles. One gram of the sugar cookie powder is added to each of 4 test tubes.

What is the signal for a vesicle storing peptide hormone to move to the plasma membrane and release contents of vesicle? a. Activation of an integrin receptor b. Activation of a g-protein c. Activation of an enzyme linked receptor d.

Which factor causes the greatest increase in an area's flash flood risk?

A body weight that is 10 to 15 percent below the desired weight is

How should we properly understand human nature?

Which molecule would be the most affected by limited nitrogen