Cal State LA » Biology » Biology 1100 - Principles of Biology » Fall 2019

Question #1

The _____ pieces of DNA will run fastest on an agarose gel.

A. bigger

B. none of these

C. smaller

Question #2

You will be using ethidium bromide to ____.

A. cause mutations

B. solidify the agarose

C. see the DNA

D. move DNA down the gel

Question #3

If you don't use loading dye, what is likely to happen?

A. samples float out of the wells

B. samples run too fast

C. samples run to slowly

D. samples won't be visible in UV light

Question #4

What is the purpose of the restriction digestion?

A. Cut the DNA at specific sites to reveal genotype

B. Allow the DNA to migrate in the gel

C. repair the backbone of amplified DNA

D. all of these

E. none of these

Question #5

Running a ladder/size marker is important to ______.

A. keep the gel running straight

B. make the gel run

C. make the gel solidify

D. have known sizes for comparison