What characteristic of short tandem repeats (strs) dna makes it useful for dna fingerprinting? what characteristic of short tandem repeats (strs) dna makes it useful for dna fingerprinting? the sequence variation is acted upon differently by natural selection in different environments. every racial and ethnic group has inherited different short tandem repeats. the sequence of dna that is repeated varies significantly from individual to individual. the number of repeats varies widely from person to person or animal to animal. submitmy answersgive up?

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The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.