Naturally occurring allelic variation produces behavioral syndromes in D. melanogaster, both "sitters" and "rovers".

Other variations include the pied and white forms all of which are the result of allelic variation at specific loci.

Alves and Azevedo (1977) note most reported cases of DA2A have been identified as new allelic variation.

One of the two known genes for which allelic variation was identified within its coding region sequence was Slc5a7 .

Three genes for which allelic variations were detected - Srd5a1, Nrif-2 and Hsd17b3 - appear to be particularly promising biological candidates to underlie the chromosome 13 QTL.

In theory, each phenotype is based upon the allelic variation within the individual genotype.

VNTRs are the class of clustered tandem repeats that exhibit allelic variation in their lengths.

Braver and Sandler discovered that meiotic chromosomal loss was one one driver of allelic variation in natural populations, (Sandler & Braver 1954.)

Although the present study was not initiated in order to examine allelic variation in the AR gene per se , the data provide an opportunity to address this question.

Effect of allelic variation on forage quality of brown midrib sorghum mutants.