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You  will try extracting DNA from a banana by following the simple instructions and can take the activity further with the use of a microscope. Enjoy!

Introduction:
Found in the shape of a double helix, DNA or deoxyribonucleic acid as it is otherwise known, provides the blueprint for various forms of life. This includes humans, cats, dogs and even things like bananas. Let's try a fun activity that involves extracting DNA from a banana.

Activity:
Blend one banana together with 1 cup of water until smooth.

Fill tubes with around 15mls of the smooth banana and water solution, making one for each student in your class.

Add around 10 drops of detergent to the banana mixture in the tubes.

Put a lid on the tubes and gently shake them (this will break open the cells and release the DNA).

Carefully pour around 20 to 30mls of methylated spirits (also known as denatured alcohol) into the the banana mixture.

Use a straightened paperclip or similar object to fish out the gooey strands of banana DNA. Tell the students to collect them in a small tube.

Finally, you can try looking at the DNA under a microscope.

Could you try the same experiment with another fruit?

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Let's see how DNA replicate itself in this funny web:

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Use this science activity to learn about how DNA replicates.

'Unzip' this DNA, then choose the correct enzymes to replicate the strand.
Click here for full screen More high school science activities
This activity can be found in our High School Biology course

Course Details:

In this course, students focus on the chemistry of living things: the cell, genetics, evolution, the structure and function of living things, and ecology. The program consists of online lessons including extensive animations, an associated reference book, collaborative activities, virtual laboratories, and hands-on laboratory experiments students can conduct at home.
Request a free catalog of K-12 Courses Request the Scope & Sequence for a course

Related Topics

biology educational games game based learning High School science activity

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High School Science Learning Activity: DNA Replication - Learning Liftoff

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Use this science activity to learn about how DNA replicates. 'Unzip' this DNA, then choose the correct enzymes to replicate the strand. Click here for full screen More high school science activities This activity can be found in our High School Biology course Course Details: In this course, students focus on the chemistry of living things: the cell, genetics, evolution, the structure and function of living things, and ecology.

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Use the interactive slide bar to learn about each stage of Mitosis. Can you memorize them all with out the activity?

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Use the interactive slide bar to learn about each stage of Mitosis. Can you memorize them all with out the activity?
Click here for full screen
This activity can be found in our High School Biology course

Course Details:

In this course, students focus on the chemistry of living things: the cell, genetics, evolution, the structure and function of living things, and ecology. The program consists of online lessons including extensive animations, an associated reference book, collaborative activities, virtual laboratories, and hands-on laboratory experiments students can conduct at home.
Request a free catalog of K-12 Courses Request the Scope & Sequence for a course

Related Topics

biology educational games game based learning High School science activity

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High School Science Learning Activity: Mitosis - Learning Liftoff

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Use the interactive slide bar to learn about each stage of Mitosis. Can you memorize them all with out the activity? Click here for full screen This activity can be found in our High School Biology course Course Details: In this course, students focus on the chemistry of living things: the cell, genetics, evolution, the structure and function of living things, and ecology.

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Enjoy and learn about DNA replication with the next video.

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After reading "Learn about the Mitosis" you have to read the next pdf and do the activities.