Which chemical is LEAST persistent in the environment?
A. Radon
B. Agent Orange
C. PCBs
D. DDT

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

What organelle other than the nucleus houses dna in a eukaryotic cell?

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.