alleelivariandid

Alleelevariandid refers to the different versions of a gene found at a specific locus on a chromosome. Alleles are essentially alternative forms of the same gene. For example, a gene that determines eye color might have one allele for blue eyes and another for brown eyes. Humans inherit two alleles for most genes, one from each parent. These alleles can be the same, in which case an individual is said to be homozygous for that gene. Alternatively, the two alleles can be different, making the individual heterozygous for that gene. The expression of these alleles determines an organism's traits. Some alleles are dominant, meaning their effect is visible even if only one copy is present. Other alleles are recessive, and their effect is only seen when two copies are inherited. The combination of alleles an individual possesses is called their genotype, while the observable physical or biochemical characteristics resulting from the genotype are called the phenotype. The study of allelic variation is fundamental to understanding genetics and inheritance patterns. It explains the diversity of traits observed within populations.