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Barry: How long does the process usually take?

Hemera: The tissues take about a week to fully connect after being grafted. Then they grow on their own.

Barry: But these plants are so complex… are they all grafted?

Hemera: Yep. They also get kind of weird because of chemicals in the air, I think.

Barry: Chemical contamination can cause mutations in plants, this is true. Chemicals and radiation are used in mutagenesis.

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