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Apr 27, 2017 · Dominant Trait Definition. A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. Traits, also known as phenotypes, may include features such as eye color, hair color, immunity or susceptibility to certain diseases and facial features such as dimples and freckles.
Aug 17, 2023 · A dominant gene is a type of gene that, when present in an individual’s genetic makeup, will be expressed in the phenotype (observable traits) of that individual, even if only one copy of the gene is inherited. In other words, the presence of a dominant allele masks the presence of a recessive allele (if present) in determining the appearance ...
Jun 16, 2022 · The general meaning of dominant is to be in control. Other meanings include commanding behavior, powerful and prevailing over all others. It also means to have authority or influence on another thing. The word dominant is mostly used in two branches of biology, i.e. genetics and ecology.
1 day ago · Definition. Dominant, as related to genetics, refers to the relationship between an observed trait and the two inherited versions of a gene related to that trait. Individuals inherit two versions of each gene, known as alleles, from each parent. In the case of a dominant trait, only one copy of the dominant allele is required to express the trait.
Figure 6.5.4 The variety of blood types in humans. Four phenotypes are shown which are A, B, O and AB. These phenotypes are the result of combinations of alleles which exemplify co-dominance (A and B) as well as alleles which exemplify complete dominance (A and B over O). The combinations of alleles result on specific antigens being expressed ...
3 days ago · Definition. Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
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When the dominant allele is located on one of the 22 pairs of autosomes (non-sex chromosomes), we refer to its inheritance pattern as autosomal dominant. An example of an autosomal dominant disorder is neurofibromatosis type I, a disease that induces tumor formation within the nervous system that leads to skin and skeletal deformities.
