0
Dominance in genetics is not a black-and-white thing. An allele may be dominant to one rival allele, but recessive to another. Ultimately, it may depend on the degree of functionality of the protein encoded by the allele. For instance, one allele may code for a non-functional protein, or not code at all. In that case, it would be recessive to any competing allele that did code for a functioning protein.
Also, phenotypes are often the result of gene complexes - no single allele codes for a particular phenotypic trait, but many together do. The relationship between dominant and recessive alleles in such a complex may be equally complex: there may be degrees of expression along a sliding scale, or specific values for each dominance/recessiveness relation (eg. spots or no spots; green eyes, gray, brown or blue; curls or no curls, etc).
See links below for more information.
When a gene is dominant, its effect will be expressed when present in the genotype, overshadowing the influence of the recessive allele. The dominant gene codes for a specific trait or characteristic that will be visible in the individual's phenotype, even if only one copy of the dominant allele is present in the genetic makeup.
Add your answer:
Earn +20 pts
Genes that prevent the other gene from showing traits are called?
Dominant genes. Dominant genes are always expressed in an organism's phenotype when present, masking the expression of recessive genes.
What do you call oransim that posssses two dominant or two recessive genes for a single trait?
Homozygous dominant for two dominant genes or homozygous recessive for two recessive genes.
How are dominant and recessive genes related?
Dominant genes are expressed over recessive genes when present in an individual's genotype. This means that the dominant gene's trait will be displayed in the individual's phenotype while the recessive gene's trait will not be expressed. However, recessive genes can still be passed on to offspring and expressed if paired with another recessive gene.
Can recessive genes become dominant?
Recessive genes do not become dominant. Dominant genes mask the expression of recessive genes in the presence of both alleles. However, if a recessive gene is selected for over time through breeding, it can become more prevalent in a population.
Why are some genes are called dominant?
cause they can fool bi**
Are polygenic genes dominant genes?
Polygenic genes are usually dominant genes.
Do dominant genes affect recessive genes?
The dominant genes take over, and then the recessive genes hide away
How do dominant and recessive genes work?
explain how dominant genes work
Which genes are dominant and which are recessive?
Dominant genes are always expressed in preference to recessive genes in cased where both genes are present.
How is codominance difference from dominant and recessive relationship?
Codominance is when 2 dominate genes appear in the phenotype of an organism. (some one else can tell you what dominate and recessive genes are)
Genes that prevent the other gene from showing traits are called?
Dominant genes. Dominant genes are always expressed in an organism's phenotype when present, masking the expression of recessive genes.
What do you call oransim that posssses two dominant or two recessive genes for a single trait?
Homozygous dominant for two dominant genes or homozygous recessive for two recessive genes.
Are the fathers genes always the dominant genes?
No, the father's genes are not always dominant. Inheritance patterns can vary depending on the specific genes and traits being considered. Some traits may be dominant if they are expressed over recessive genes, while other traits may exhibit co-dominance or incomplete dominance.
A trait which results from two dominant genes is called?
A trait resulting from two dominant genes is called codominance. This means that both genes are expressed in the offspring, leading to a phenotypic trait that displays characteristics of both dominant alleles.
What will happen if an organism has the dominant gene?
Dominant genes express themselves, phenotype depends upon genes .
How are dominant and recessive genes related?
Dominant genes are expressed over recessive genes when present in an individual's genotype. This means that the dominant gene's trait will be displayed in the individual's phenotype while the recessive gene's trait will not be expressed. However, recessive genes can still be passed on to offspring and expressed if paired with another recessive gene.
What are capital genes?
capital genes are dominant genes as they are written by capital letters
