The creation of ever-longer stretches of man-made DNA is allowing researchers to make new strides in understanding how multiple genes work together.

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It's probably a combination of multiple genes interacting somehow with the environment.

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Age-related disease and aging itself involves multiple genes.

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The hope is that slamming multiple defective genes at once with highly targeted drugs will increase the chance of long-lasting remissions or even cures.

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So far, researchers have developed about 60 experimental wheat varieties with multiple low-resistance genes.

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The goal is to move from having to merely tweak the proteins that are used as biotech drugs to being able to design them, even taking material from multiple organisms and using them to create new, functional genes.

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