Many plants are polyploids Humans (2n) Triploid (3n) crops: apple, BANANA, watermelon Tetraploid crops (4n) apple, cotton, potato, peanut Hexaploid (6n)

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Presentation transcript:

Many plants are polyploids Humans (2n) Triploid (3n) crops: apple, BANANA, watermelon Tetraploid crops (4n) apple, cotton, potato, peanut Hexaploid (6n) crops: kiwi Octaploid (8n) crops: strawberry, sugar cane, pansies

Crushing the bananas helps separate cells Hypotonic water helps cells swell bigger.

WHY? Adding SALT (Na + Cl - ) helps DNA molecules with NEGATIVE charges stick together. Soap -helps break down cell membranes and release DNA

Cold alcohol helps the DNA precipitate (come out of solution) so it can be collected.

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