DNA stawberry extraction

What base is NOT found in DNA?

• Thymine

• Adenine

• Uracil

• Cytosine

What is the appearance of DNA when it is successfully extracted from a strawberry?

• Green strands

• Clear liquid

• Red crystals

• White and stringy

Why is cold ethanol used in DNA extraction from strawberries?

• To sterilise the solution

• To precipitate the DNA

• To cool the mixture quickly

• To cool the mixture quickly

What is the role of salt in the DNA extraction process?

• To dissolve proteins

• To neutralise acids

• To help DNA precipitate by breaking hydrogen bonding between DNA and water.

• To change DNA PH

What is the main purpose of mashing the strawberry during DNA extraction?

• To separate the seeds from the pulp

• To break down the cell walls

• To change the colour of the solution

• To increase the temperature

What is the function of detergent in the DNA extraction process?

• To dissolve the cell membrane

• To cool the solution

• To increase the pH

• To add color to the solution

What is the role of enzymes in the DNA extraction process?

• To break down proteins

• To increase the solution's viscosity

• To change the color of DNA

• To precipitate the DNA

In addition to breaking the cell wall of the cells, what does mashing the strawberry do?

• Releases the DNA from the nuclei

• Increases the surface area: Volume ratio

• Reduces the viscosity

• Removes the seeds

Which Base pairs with cytosine in DNA?

Which base pairs with adenine in DNA