Arabidopsis thaliana (IMAGE)

Cold Spring Harbor Laboratory

Arabidopsis thaliana

Caption

Plants like Arabidopsis, seen here, have two options to ensure accurate chromosome division—a molecule called DDM1 and a process known as RNAi. If Arabidopsis loses one of these, it’s fine. But if it loses both, it’s in trouble.

Credit

Martienssen lab/Cold Spring Harbor Laboratory

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