Homology, used interchangeably herein with the term identity refers to sequence {HEAD ~ similarity} between {TAIL ~ two protein} or between two nucleic acid molecules 
Homology , used interchangeably herein with the term identity refers to sequence { HEAD ~ similarity } between { TAIL ~ two protein } or between two nucleic acid molecules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH