If you glue your fingers together and they stay stuck, your hand can't function very well. Likewise, if a chromosome gets stuck together they do not function optimally or at all. Such a situation can be lethal or seriously detrimental to the organism involved.
Or another association might be identical twins that are fused together. They often die and if they live they don't work very well.
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.