1.   This suggests that human genetic variation is the result of only a few thousand minor differences between proteins.

2.   The genetic basis of quantitative genetic variation is being investigated at the molecular genetic and population level.

3.   No genetic variation has been described at the protein level but at the DNA level an insertion-deletion RFLP is observed with several restriction enzymes.

4.   Among the last group, only those with very light skin and a history of sunburn exhibited genetic variation, Thody said.

5.   And the cloning of one or even several members of a species can not produce the genetic variations a species needs to survive, he said.

6.   And the genetic variations that lead to a susceptibility for these diseases are being identified.

7.   And though one genetic variation predominates, more work must be done to determine which mutations are involved in hair color and susceptibility to ultraviolet radiation.

8.   Another goal of the genome project is identifying genetic variations that dictate differences in the way humans respond to drugs.

9.   At this lab, the scientists will look for subtle genetic variations between the more-violent winners and the more-submissive losers.

10.   But over time, the genetic variation in commercial crops has become limited, so when breeders cross these crops, the possible outcomes are also limited.