DNA Extraction Warm Up 1
Welcome to the electronic biology classroom of the 21st Century. This biology warm-up or bell ringer concentrates on the extraction and observing of DNA taken from wheat germ, strawberry and human epithelial tissues. I hope you read the EXPERIMENT: DNA Extraction Techniques! This laboratory warm up will permit you unlimited number of attempts to improve your test-taking and learning skills in advanced biology. As a bonus, each attempt will randomly generate new questions and answers.
- 1.How many diploid chromosomes does wheat (Triticum aestivum)have in it's nucleus during in the resting stage?
- A.
7
- B.
14
- C.
21
- D.
42
- E.
56
- 2.How many sets of chromosomes can strawberries have in their nucleus?
- A.
8
- B.
50
- C.
240
- D.
360
- 3.What chemical is added to the wheat germ after preparing the test tube?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
DNA Helicase
- E.
Sodium Chloride solution
- 4.What chemical is added to the wheat germ and distilled water?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
DNA Helicase
- E.
Sodium Chloride solution
- 5.What chemical is added to the wheat germ, distilled water, detergent and sodium chloride solution?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
DNA Helicase
- E.
Sodium Chloride solution
- 6.What chemical is added to the wheat germ, distilled water, detergent and sodium chloride solution. What layer should be on the top of the column in the test tube?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
DNA Helicase
- E.
Sodium Chloride solution
- 7.What chemical is added to the wheat germ, distilled water, detergent and sodium chloride solution. What layer should be in the middle layer of the column in the test tube?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
Extracted DNA
- E.
Sodium Chloride solution
- 8.What chemical is added to the wheat germ, distilled water, detergent and sodium chloride solution. What layer should be in the bottom of the column in the test tube?
- A.
Isopropyl alcohol
- B.
Detergent solution
- C.
Distilled water
- D.
Extracted DNA
- E.
Sodium Chloride solution
- F.
Wheat germ
- 9.Which chemicals should be mixed into the "wheat germ" layer? (HINT: there are multiple answers for this question.)
- A.
Distilled water
- B.
Sodium Chloride solution
- C.
Detergent solution
- D.
Isopropyl alcohol
- E.
Strawberry Extracted DNA
- 10.Describe the temperature of the isopropyl alcohol at the time mixing it into the test tube.
- A.
Room Temperature
- B.
Warm
- C.
Hot
- D.
Cold
- E.
Extremely Cold
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