report that in some cases this difference might contribute to disease processes. Monoallelically expressed genes are distributed ... in situ hybridization and allele-specific RT-PCR, revealed ...

Genetic variation describes naturally occurring genetic differences among individuals ... by a population or is the only allele present at a particular gene locus within a population.

New research in mice finds that specific complex behaviors in these animals are shaped by genes inherited from just one ... but expressing the maternal or paternal allele leads to observable ...

The height of pea plants is controlled by a single gene which has two alleles: tall and short. The tall allele is dominant and is shown as T. The small allele is recessive and is shown as t.

This gene makes people sensitive to some bitter chemicals, such as phenylthiocarbamide (PTC) and propylthiouracil (PROP).