By Rami Major
Allele
(Noun. /uh-LEEL/)
What does it mean?
Alleles can be considered versions of a gene, and a single gene can have many alleles. Humans have two alleles for a single gene: one from the mother, and the other from the father. The relationship between the two alleles that you have will influence your phenotype, or your physical expression of that gene.
How do I use it in a sentence?
I have brown eyes, so I must have inherited at least one allele for brown eyes from one of my parents.
Etymology
The word allele evolved from the German word “allelomorph,” which means “alternative form of a gene.” “Allelomorph” was coined from the Greek words “allos” meaning “other” and “morphe” meaning “form.”
Related terms
Gene
Dominant
Recessive
Punnett square
Fields of study in which this word is commonly used
Genetics
Medicine
Genetic Counseling