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. smaller

B. bigger

C. none of these

Question #2

You will be using ethidium bromide to ____.

A. solidify the agarose

B. see the DNA

C. cause mutations

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 to slowly

C. samples won't be visible in UV light

D. samples run too fast

Question #4

What is the purpose of the restriction digestion?

A. repair the backbone of amplified DNA

B. Cut the DNA at specific sites to reveal genotype

C. all of these

D. Allow the DNA to migrate in the gel

E. none of these

Question #5

Running a ladder/size marker is important to ______.

A. have known sizes for comparison

B. make the gel run

C. keep the gel running straight

D. make the gel solidify