Do berries have DNA?

All living things are made of cells, and with the exception of mammalian red blood cells, all cells contain DNA. Berries …with a side of DNA? invites students to explore cell structure and the presence of DNA in living cells, especially in the cells of foods we eat.

Do blueberries have more DNA than strawberries?

18 Discussion and Analysis From analyzing the data we can see that blueberries have the largest amount of DNA per gram of fruit. To me this was surprising because blueberries are so small compared to strawberries.

Can you extract DNA from blueberries?

Place 4 blueberries into a sandwich bag, seal shut and squash for about 1 minute between your thumb and index finger making sure there are no lumps (except for the skin). 2. Add 10ml of ‘ DNA Liquid’ (soapy, salty water) and continue to squash for a further minute or until well squashed.

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How much DNA do strawberries have?

In humans each of these cells have 2 copies of the DNA, but in strawberries each of these have 8 copies of the DNA (scientists call this octoploid). That means strawberries have 4 times as many copies of DNA as humans, making it 4 times easier to see!

Can you extract DNA from fruits?

Experiment to purify DNA from fruit Bananas, kiwis and strawberries all work well. (Remove the skin of the bananas and kiwi, we just want the insides!) Step 2: In a separate bowl, mix the washing up liquid, salt and tap water. Stir gently trying to avoid making too many bubbles in the mixture.

Which fruit produces the most DNA?

Strawberries are an exceptional fruit to use for this DNA extraction lesson because they yield more DNA than any other fruit (i.e. banana, kiwi, etc.). Strawberries are octoploid, meaning that they have eight copies of each type of chromosome.

What has more DNA strawberry or banana?

Strawberries have large genomes; they are octoploid, which means they have eight of each type of chromosome in each cell. Thus, strawberries are an exceptional fruit to use in DNA extraction labs and strawberries yield more DNA than any other fruit (i.e. banana, kiwi, etc.).

Why does a banana have more DNA than a strawberry?

Therefore, we made the conclusion based on the results and data, that in reality the banana has more DNA then the strawberry. We believe that the strawberry will have more DNA than the Banana because it has more seeds and it has more seeds and it produces more quantity.

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How do you extract DNA from a banana?

Explain that crushing the bananas separates its cells and exposes them to the soap and salt. The soap helps break down cell membranes and release DNA. The salt helps bring the DNA together, and the cold alcohol helps the DNA precipitate and come out of solution so it can be collected.

How much DNA does a blueberry have?

Research Campus – to help decode some 500 million base pairs identified by the letters A, T, C and G. Those base pairs make up more than 25,000 genes in the blueberry, a plant with only 12 chromosomes (compared to humans, who have 46 chromosomes). Millions of letters make up the DNA -based code for blueberries.

What can you extract DNA from at home?

  1. Step 1: We Need. 500 ml water.
  2. Step 2: Add One Tablespoon of Slat to Drinking Water. Pour 500ml water in a plastic cup.
  3. Step 3: Gargle the Salt Water.
  4. Step 4: Add Clear Diashwashing Soap.
  5. Step 5: Mix Isopropyl Alcohol and 3 Drops of Food Coloring.
  6. Step 6: Pour Alcohol in the Salt Water Cup.
  7. Step 7: Results: Now We Can See DNA.

Why do scientists extract DNA in humans?

The ability to extract DNA is of primary importance to studying the genetic causes of disease and for the development of diagnostics and drugs. It is also essential for carrying out forensic science, sequencing genomes, detecting bacteria and viruses in the environment and for determining paternity.

Where is DNA in strawberries?

Within a few seconds, watch for the development of a white cloudy substance ( DNA ) in the top layer above the strawberry extract layer. Reseal the bag and gently smash for another minute (avoid making too many soap bubbles). Tilt the cup and pick up the DNA using a plastic coffee stirrer or wooden stick.

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Why are strawberries the best fruit to extract DNA from?

Ripe strawberries are an excellent source for extracting DNA because they are easy to pulverize and contain enzymes called pectinases and cellulases that help to break down cell walls. And most important, strawberries have eight copies of each chromosome (they are octoploid), so there is a lot of DNA to isolate.

What does DNA from the Strawberry look like?

The DNA will look like a white, cloudy or fine stringy substance. DNA is not visible as a single strand to the naked eye, but when thousands of threads of DNA are present, you will be able to see the large groups of threads of DNA.

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