Extracting DNA From Strawberries (v2) (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does it mean that strawberries are octoploid?
What does it mean that strawberries are octoploid?
They have 8 copies of each chromosome
Why does DNA precipitate when isopropyl alcohol is added?
Why does DNA precipitate when isopropyl alcohol is added?
DNA is soluble in water but not alcohol
What is the role of detergent in DNA extraction?
What is the role of detergent in DNA extraction?
Breaks down fatty cell membranes
What is the white, stringy material observed after adding alcohol?
What is the white, stringy material observed after adding alcohol?
Thousands of DNA molecules clumped together
What role does salt play in DNA extraction?
What role does salt play in DNA extraction?
Helps DNA stick together and clump
What is a lysis buffer?
What is a lysis buffer?
A solution that breaks open cell membranes
What are the four main stages of DNA extraction in order?
What are the four main stages of DNA extraction in order?
Mashing, lysis buffer, filtering, alcohol
What is the filtrate in this experiment?
What is the filtrate in this experiment?
Liquid that passes through filter paper
Which enzymes naturally present in strawberries help break down cell walls?
Which enzymes naturally present in strawberries help break down cell walls?
Pectinases and cellulases
What is the purpose of adding isopropyl alcohol to the filtrate?
What is the purpose of adding isopropyl alcohol to the filtrate?
To make DNA precipitate and become visible