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J. HERBERT TAYLOR 



5' LINKER 



Fig. 8. Before or during replication the fhromosome is assumed to be stabilized 

 by the addition of H linkers to form a double axis, each of which with its attached 

 DXA chains will become a chromatid by the time rejilication is complete. The 

 stabilizing material is r(>presented as a polymer attacluni to alternate 5' linkers. 

 Although shown as a continuous chain for simplicity in illustration, it probably 

 would consist of many small subunits attached in some way as yet unknown. 



