molecular bio 2

Question 1

_______ is a building block of DNA.

Answer 1

Nulceotide

Question 2

DNA is negativly charged.

Answer 2

true

Question 3

_______ is the polysaccharide polymer used in the gel for electrophoresis.

Answer 3

agarose

Question 4

DNA is placed in the wells near the _______ side and is pulled across the gel towards the ______ side.

Answer 4

Negatively charged, positively charged

Question 5

True or False: Molecules with more molecular weight will take less time to travel across the gel.

Answer 5

false

Question 6

DNA ________ is a sample with known fragment sizes that can be used as a reference to estimate how large other samples are.

Answer 6

ladder

Question 7

DNA size is measured in what unit?

Answer 7

base pairs

Question 8

Gel electrophoresis is used to separate molecules based on their________.

Answer 8

size

Question 9

_______ have the ability to cut DNA from a specific area into tiny pieces.

Answer 9

restriction enzymes

Question 10

If you are looking at the bands in your gel, the _____ fragments will be closer to the loading wells, while the ______ fragments will be closer to the positive end of the gel.

Answer 10

longer, shorter