Medical Definition of Four-strand crossing over

1. Crossing over with both strands of DNA from each sister chromatid, so that both strands from one chromatid are exchanged for both strands on the other. This is different from the usual case where only one of the two DNA strands on one sister chromatid is exchanged for the one matching strand (of the two strands) on the other sister chromatid. (09 Oct 1997)

Lexicographical Neighbors of Four-strand Crossing Over

four-peat
four-penny nail
four-ply
four-point Calvinist
four-point Calvinists
four-poster
four-posters
four-pounder
four-seam fastball
four-seamer
four-seamers
four-sided
four-spot
four-square
four-strand crossing over (current term)
four-stroke engine
four-stroke engines
four-stroke internal-combustion engine
four-stroking
four-tailed bandage
four-vector
four-vectors
four-velocity
four-wheel
four-wheel drive
four-wheeled
four-wheeler
four-wheelers
four-wing flying fish

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