What is and allele I need helppppp plssss

Answer:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
Answer:
Any one of two or more genes that may occur alternatively at a given site on a chromosome.
Explanation:
Alleles may occur in pairs, or there may be multiple alleles affecting the expression of a particular trait.
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