If you need to clarify the directions for a lab activity what should you do

To clarify, you should read the directions that come with the lab activity to be sure of what to do in the lab.

I’m going to go with b!

There are four nitrogenous bases that make up dna. the two pyramidines are thymine and cytosine. the two purines are adenine and guanine. these bases pair in a very specific way. adenine - thymineguanine - cytosine i remember it like this: a tall, good cat.