DNA Extraction Lab Quiz

In Eukaryotic Cells, where is DNA found in the cell?

• Nucleus

• Cytoplasm

• Ribosome

• Plasma Membrane

• Endoplasmic Reticulum

Why do we smash the strawberry very well for a few minutes?

• to break the nuclear membrane

• to break the cell walls

• to dissolve the nuclear membrane

• to isolate the DNA from the nucleus

Why do we add detergent or soap to the squished strawberries?

• to break up the cell walls
• to dissolve the nuclear membrane
• to clean the strawberry
• to isolate the DNA

Tags

NGSS.MS-LS1-1

Why do we add alcohol to the solution of detergent and strawberries?

• To break up the cell wall
• To destroy the nuclear membrane
  
• To isolate the DNA which is repelled by alcohol
• To isolate the DNA, which dissolves in alcohol
  

Tags

NGSS.MS-PS1-2

How long should you smash the strawberry mixture the first time?

• 8-10minute

• 2 -3 minutes

• 5-7minutes

• 4 minutes

How many ml of extraction buffer should you add to the the strawberries after you smash them?

• 5 ml

• 10 ml

• 15 ml

• 20 ml

Name this piece of lab equipment.

• Beaker

• Flask

• Test tube

• Graduate cylinder

Name this piece of lab equipment.

• Beaker

• Flask

• Test tube

• Graduate cylinder

View the height of the liquid in the graduated cylinder with your eyes directly level with the liquid. The liquid will tend to curve downward. This curve is called the meniscus. Always read the measurement at the bottom of the meniscus.

How much liquid is in this graduated cylinder?

• 18

• 19

• 20

• 21

A single subunit of DNA is called a:

• monosaccharide

• amino acid

• glycerol

• nucleotide

Tags

NGSS.HS-LS1-1