What is an allele? (1 point)

a variant form of a gene

O a non-inherited trait

O a trait that can be masked

O a trait that appears in an offspring if one of the parents contributes it

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A variant form of a gene

An allele is a variant form of a gene.

The correct answer is "a variant form of a gene."

An allele is a specific version or variant of a gene that determines a particular trait or characteristic of an organism. Genes are segments of DNA that encode instructions for building proteins, which are responsible for various traits. For each gene, an individual can have different alleles. For example, the gene responsible for eye color may have alleles for blue, brown, or green eye color. These different alleles lead to variation in traits among individuals.