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. smaller

C. none of these

Question #2

You will be using ethidium bromide to ____.

A. see the DNA

B. move DNA down the gel

C. solidify the agarose

D. cause mutations

Question #3

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

A. samples won't be visible in UV light

B. samples run to slowly

C. samples float out of the wells

D. samples run too fast

Question #4

What is the purpose of the restriction digestion?

A. Allow the DNA to migrate in the gel

B. Cut the DNA at specific sites to reveal genotype

C. all of these

D. repair the backbone of amplified DNA

E. none of these

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