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.

Each gene might have different forms, and these are called alleles. The gene for eye colour has an allele for blue eye colour and an allele for brown eye colour. For any gene, a person may have ...

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 ...

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

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.