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. move DNA down the gel

B. solidify the agarose

C. cause mutations

D. see the DNA

Question #3

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

A. samples run to slowly

B. samples won't be visible in UV light

C. samples run too fast

D. samples float out of the wells

Question #4

What is the purpose of the restriction digestion?

A. all of these

B. Allow the DNA to migrate in the gel

C. repair the backbone of amplified DNA

D. none of these

E. Cut the DNA at specific sites to reveal genotype

Question #5

Running a ladder/size marker is important to ______.

A. have known sizes for comparison

B. keep the gel running straight

C. make the gel run

D. make the gel solidify