The definition is an alternative form of gene that is located at a specific location on a specific chromosome (whatever that means). They are usually a part of a pair.
http://answers.ask.com/Health/Diseases/what_are_alleles
Alleles are one of the alternative forms of a gene that governs a characteristic.
http://wiki.answers.com/Q/What_are_alleles
Science question: What are alleles passed from parent to child on a sex chromosome? They are sex-linked genes. ... How many alleles does a chromosome have? What are alleles in a heterogygous parent? How many alleles do you get from each parent? Alleles passes from parent to child on sex cell? How many sex chromosomes are...
wiki.answers.com/Q/What_are_alleles_passed_from_parent_... wiki.answers.com/Q/What_are_alleles_passed_from_parent_to_child_on_a_sex_chromosome
Alleles are corresponding pairs of genes located at specific positions in the chromosomes. Together, alleles determine the genotype of their host organism. For example, the alleles for eye color are found on chromosomes 15 and 19, and depen...
http://www.wisegeek.com/what-are-alleles.htm
Allele - Wikipedia, the free encyclopedia
An allele (pronounced /ˈæliːl/ (UK), (US); from the Greek αλληλος allelos , meaning other ) is one of a series of different forms of a gene. The word is a short form of allelomorph ('other...
en.wikipedia.org/wiki/Allele
Definition of allele. ... Examples: The gene for seed shape in pea plants exists in two forms, one form or allele for round seed shape (R) and the other for wrinkled seed shape (r). Organisms have two alleles for each trait. When the alleles of a pair are heterozygous, one is dominant and the other is recessive.
biology.about.com/od/geneticsglossary/g/alleles.htm biology.about.com/od/geneticsglossary/g/alleles.htm
Genes and Alleles ... Not all copies of a gene are identical and alternative forms of a gene, called alleles, lead to the alternative form of a trait. Alleles are a way of identifying the two members of a gene pair which produce opposite contrasting phenotypes.
library.thinkquest.org/20465/genes.html
An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.
www.genome.gov/glossary.cfm?key=allele www.genome.gov/glossary.cfm?key=allele
noun, plural: alleles ... For example, a pair of alleles controlling the same trait, i.e. eye color: one allele codes for blue eyes, another allele for brown eyes. ... In humans, simple traits such as eye color may be caused by the interaction of only one pair of alleles. But for complex traits, such as height,
www.biology-online.org/dictionary/Allele www.biology-online.org/dictionary/Allele
Changes made since the last update (4-Sep-2008) are marked in red ... Home Page of the Human Cytochrome P450 (CYP) Allele Nomenclature Committee ... Allele nomenclature for Cytochrome P450 enzymes:
www.cypalleles.ki.se/ www.cypalleles.ki.se/