An allele is an acquired trait which determines the phenotype and genotype of an organism.
allelomorph, gene, cistron, factor
It is pronounced a lee el
stipulative definition is stipulative definition
On any given locus, there are different possible forms of a gene, called "alleles." There is a dominant allele for each gene, often expressed by a capital letter. Recessive genes are frequently denoted with a minuscule letter. For example, "R" would represent a dominant allele and "r" a recessive one. Every individual has two alleles each gene (for example, Rr, RR, or rr); in this pair, a dominant allele is expressed if it is present, regardless of what other allele is carried. Recessive alleles, conversely, will only be expressed if there are two of them -- rr, in this case. There may be more than two alleles in each set, but they all follow the rule of dominance. For example, ra might be dominant to rb, which might be dominant to r. In some cases, dominance is incomplete. This means that individuals heterozygous for a certain gene -- meaning both the alleles are different, i.e. Rr, as opposed to the same (homozygous) -- will express a different trait than those homozygous recessive (rr) or dominant (RR).
the two types of definition are the formal and informal definition.
lowercase allele
Evolution, the change in allele frequency over time in a population of organisms, can not end by definition.
By the definition. Evolution is the change in allele frequency over time in a population of organisms.
An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).
Is a population. Consider the definition of evolution.Evolution is the change in allele frequency over time in a population of organisms.
In science, particularly in genetics, "dominant" refers to an allele that expresses its trait in the presence of another allele, known as recessive. When an organism has at least one dominant allele for a particular trait, the dominant trait will manifest in its phenotype. This concept is fundamental in understanding inheritance patterns and how traits are passed from parents to offspring.
A dominant allele
An allele that is dominated or covered up by another allele is called a recessive allele. This means that the trait associated with the recessive allele is only expressed when an individual carries two copies of that allele.
The answer is allele
Change over time in populations of organisms. Or, more formally; the change in allele frequency over time in a population of organisms.
The recessive allele.
Recessive allele.