The allele frequency represents the incidence of a gene variant in a population. Alleles are variant forms of a gene that are located at the same position, or genetic locus, on a chromosome.

In his famous experiments on pea plants, Gregor Mendel rejected this hereditary mechanism in favor of particulate inheritance by demonstrating that alternative versions of genes (alleles ...

Each gene might have different forms, and these are called alleles. The diagram shows the relationship between the cell, its nucleus, chromosomes in the nucleus, and genes.

The height of pea plants is controlled by a single gene which has two alleles: tall and short. The tall allele is dominant and is shown as T. The small allele is recessive and is shown as t.

Then they investigated the origin, distribution and functions of the allele to determine if it impacted the course of natural killer (NK) cell-driven immunity across Oceania.

Carrying two risk alleles was associated with 25% higher ... of African ancestry," Gbadegesin said at the late-breaking science session. "We have some ideas about what the drivers of these ...