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.
What is the definition of dominant in science?
Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.
What is the best definition of dominant trait?
Dominant: A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. (In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). (In genetic terms, a recessive trait is one that is phenotypically expressed only in homozygotes).
What is a recessive in genetics?
Refers to a trait that is expressed only when genotype is homozygous; a trait that tends to be masked by other inherited traits, yet persists in a population among heterozygous genotypes.
What is a dominant trait definition for kids?
A dominant trait is an inherited characteristic that appears in an offspring if it is contributed from a parent through a dominant allele. Alleles come in two different forms: recessive (denoted as a small letter, e.g., a) and dominant (denoted as a capital letter, e.g., A).
What is a recessive easy definition?
: being or produced by a form of a gene whose effect can be hidden by a dominant gene and which can produce a noticeable effect only when two copies of the gene are present Blue eye color is a recessive trait. recessive.
Whats an example of a dominant trait?
Freckles, cleft chin and dimples are all examples of a dominant trait. Having almond-shaped eyes is a dominant trait whereas having round eyes is a feature controlled by recessive alleles. The trait of detached earlobes, as opposed to attached earlobes, is dominant.
What is recessive example?
Recessive alleles only show their effect if the individual has two copies of the allele (also known as being homozygous?). For example, the allele for blue eyes is recessive, therefore to have blue eyes you need to have two copies of the blue eye allele.
What is a another word for recessive?
In this page you can discover 29 synonyms, antonyms, idiomatic expressions, and related words for recessive, like: not dominant, passive, latent, receding, suspended, inactive, regressive, carrier inheritance, refluent, dominant and prevailing.