fork (fork) a pronged instrument.
fork
replication fork a site on a DNA molecule at which unwinding of the helices and synthesis of daughter molecules are both occurring. 
)
Replication fork, showing simultaneous synthesis of both strands; since synthesis occurs in the 5′ to 3′ direction, one strand, the leading strand, can be synthesized continuously while the other, the lagging strand, must be synthesized discontinuously in short fragments (Okazaki fragments) which are later joined.
tuning fork a device that produces harmonic vibration when its two prongs are struck; used to test hearing and bone conduction.
fork
[fôrk]
Etymology: L, furca
1 an instrument with prongs.
2 something resembling such an instrument.
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