Free RNA nucleotides pair with the complementary DNA nucleotides on one strand of DNA.

Which of the following is a clone? a. the cell that was taken from the firefly experiment b. a transgenic mouse c. Dolly d. the tobacco plant with the luciferase gene

Which of the following experiments led to the dismissal of the theory of spontaneous generation led by the scientific community?

Planets in the solar system revolve around the sun because

The avoidance of personal prejudice or bias is an important trait of a scientist. a. True b. False

The decline of anchovies off the coast of Peru is most closely linked with which of the following human activities? A) global warming B) pollution C) overharvesting D) domestication of animals

A 37-year-old client of Native American/First Nations/Aboriginal descent visits the clinic for the first time. She is about 12 weeks pregnant, and this is her first pregnancy.

When changing lanes, you should: A. Adjust your speed to match traffic in the new lane B. Move over several lanes at once C. Wait until you're at an intersection to perform the maneuver

Which structure does this organism use for movement? a. cilia b. contractile vacuole c. flagella d. pseudopodia?

How does cell division differ in plant cells and animal cells?

Air pollution can be controlled by A.) permitting more storm runoff B.). Burning more coal C.). Eliminating sewage D.) putting scrubbers on power plants