About 25,200,000 results
Open links in new tab
  1. Allele Definition and Examples - Science Notes and Projects

    Nov 29, 2023 · While an allele refers to a variant form of a gene, a gene is a broader term that refers to a unit of heredity in general. A gene is a sequence of DNA that contains the …

  2. Allele | Definition, Examples, & Facts | Britannica

    Allele, any one of two or more genes that may occur alternatively at a given site (locus) on a chromosome. Alleles may occur in pairs, or there may be multiple alleles affecting the …

  3. Allele - National Human Genome Research Institute

    3 days ago · "Allele" is the word that we use to describe the alternative form or versions of a gene. People inherit one allele for each autosomal gene from each parent, and we tend to lump the …

  4. Allele - Wikipedia

    An allele[1] is a variant of the sequence of nucleotides at a particular location, or locus, on a DNA molecule. [2] Alleles can differ at a single position through single-nucleotide polymorphisms, …

  5. Alleles: Definition, Types, Features, Applications - Microbe Notes

    Aug 3, 2023 · Alleles, known as neutral alleles, have no influence on an organism’s phenotype or its observable characteristics. According to Mendelian genetics, dominant alleles can exist in …

  6. What is an Allele? - GeeksforGeeks

    Jul 23, 2025 · Allele: An allele is an alternative form of a gene situated in a specific locus of a specific gene. Allele is one of the members of a pair of genes that expresses the alternative …

  7. What Is an Allele and How Does It Determine Traits?

    Jul 31, 2025 · An allele is a specific version of a gene, representing one of two or more forms that can exist at a particular location on a chromosome. These genetic variations are fundamental …

  8. What Is an Allele? Definition, Examples, and Terms

    Oct 31, 2025 · The allele is a core concept in this process, representing the specific variations that make up the instructions for a given feature. An allele is defined as a variant form of a gene, …

  9. 4.1: Alleles and genes - Biology LibreTexts

    Genes as DNA instructions located on chromosomes, with alleles as alternative versions of the same gene. Clear links between allelic differences and observable traits, using simple, …

  10. Alleles: Definition, Gene Comparison, Examples - KnowYourDNA

    May 7, 2025 · Summary An allele is a specific version of a gene, so you will always have two alleles in a gene. These contribute to your traits.