Strawberry DNA Lab Protocol.

Strawberry DNA Lab Protocol. - StrawberryDNA

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Strawberry DNA The native British wild strawberry is a "diploid" - it has two sets of chromosomes, as in humans. The most  commonly cultivated strawberry, Fragaria ananassa, is an octoploid with eight sets. This makes it a good candidate for  demonstrating DNA extraction - with eight copies of each gene in the strawberry genome, strawberries are packed full of  it.  The strawberry, it turns out, has a long and complicated family history. "The cultivated strawberry is interesting from a  genomic perspective, because it's a polyploid hybrid species." Unlike peas, for example, or humans, for that matter, which  are diploids (with two sets of chromosomes), a strawberry is an octoploid (with eight sets of chromosomes). How some  strawberries evolved from diploids to octoploids is part of the story that people are trying to unravel.   Many people are surprised to find out that strawberry growers plant bare-root plants rather than seeds. The  reason is every strawberry seed contains different genetic material, the product of a myriad of potential gene combinations.  Because the genetics of strawberries are so diverse (humans are diploid, strawberries are octoploid).   For strawberries, the  mother plant puts out runners (called daughter plants) that were essentially identical to her, which in turn also put out  runners.  The major varieties of strawberries grown in Florida are Sweet Charlie, Camarosa, and the Oso Grande.
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One of the reasons strawberries work so well is that they are soft and easy to pulverize.  Also, ripe strawberries 
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This note was uploaded on 11/23/2011 for the course BIO 100 taught by Professor Robinson during the Fall '08 term at BYU.

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Strawberry DNA Lab Protocol. - StrawberryDNA

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