31. The genetic variations for lactase persistence and greater height came with the Yamna people. 32. Her research develops computational approaches to better understand genetic variation . 33. Fragmentation also does not let the pheasants get the genetic variation that they need. 34. In some cases, data on genetic variations can be conflicting. 35. Outside experts acknowledge that scientific papers link certain diseases to genetic variations and diet. 36. The genetic variations that aggravate lung cancer risk are probably very rare, she said. 37. Genetic variations that were held in reserve begin to trigger.38. Inbreeding is especially problematic in small populations where the genetic variation is already limited. 39. Heritability measures the fraction of phenotype variability that can be attributed to genetic variation . 40. Thus the capability for sex is maintained even though little genetic variation is produced.