The genotype of an organism is the unique set of alleles for a particular gene, and the phenotype of the organism is the physical characteristic resulting from that genotype.
What is an allele?
- Leading textbooks on genetics and evolution state that an allele is a variation of the same sequence of nucleotides at the same location on a long DNA molecule.
- "The chromosomal or genomic location of a gene or any other genetic element is called a locus and alternative DNA sequences at a locus are called alleles."
- Alleles specifically affect how our body's cells function, affecting traits and characteristics including height, blood type, eye and hair color, skin pigmentation, and many more.
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