📖 what
What is an allele?
Quick Answer
An allele is one version of a gene. Different alleles help explain why people can inherit different traits, such as eye color or blood type.
The Full Story
Genes often exist in more than one form, and each form is called an allele. You inherit one allele from each parent for many genes, and the combination can influence how a trait appears. Some alleles are dominant, some are recessive, and some show incomplete dominance or codominance. The ABO blood group system is a classic example, with A, B and O alleles producing different blood types.
Key Facts
1.Alleles are different versions of the same gene
2.You usually inherit one allele from each parent
3.The ABO blood group system has multiple alleles
YouTube Angle
Suggested video title for this topic:
"Why one gene can have many versions"
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