Epistasisrefers to genetic interactions in which the mutation of one gene masks the phenotypic effects of a mutation at another locus.Answers.comSystematic analysis of these epistatic interactions can provide insight into the structure and function of genetic pathways. By examining the phenotypes resulting from pairs of mutations we begin to understand how the function of these genes intersects. Genetic interactions are generally classified as either Positive/Alleviating or Negative/Aggravating. In the case of a positive epistatic interaction, the double mutant exhibits a phenotype which is neutral or improved relative to the phenotype of a single mutant Answers.com. This phenotypic response occurs when both genes lie within the same pathway. Conversely, negative interactions are characterized by an even stronger defect than would be expected in the case of two single mutations, and in the most extreme cases (synthetic sick/lethal) the double mutation is lethal. This aggravated phenotype arises when genes in compensatory pathways are both knocked out. High-throughput methods of analyzing these types of interactions have been useful in expanding our knowledge of genetic interactions. Synthetic genetic arrays (SGA), diploid based synthetic lethality analysis on microarrays (dSLAM), and epistatic miniarray profiles (E-MAP) are three important methods which have been developed for the systematic analysis and mapping of genetic interactions. This systematic approach to studying epistasis on a genome wide scale has significant implications for Functional_genomics. By identifying the negative and positive interactions between an unknown gene and a set genes within a known pathway, these methods can elucidate the function of previously uncharacterized genes within the context of a metabolic or developmental pathway.
A recessive gene, recessive genes will not be expressed if they are masked by a dominant gene. Ex. having blonde hair is a recessive trait meaning if a person has a gene for blonde hair and a gene for brown hair, the person will have brown hair
Gene interaction where one gene interfers with the expression of another gene is know as epistasis.
it is the dominant allele (the phenotype is the characteristic shown)
A gene that masks the phenotypic effect of another gene is called an epistatic gene; the gene it subordinates is the hypostatic gene.
A dominant gene masks a recessive gene.
Epistatic gene
Recessive, I think
dominant
when one allele is completely dominant over another allele, then it masks the expression of the second allele so the allele that masks the effect is called dominant allele and the allele whos effect is masked is called recessive allele
A dominant allele will mask the prsence of a recssive allele
dominance :) i think its dominance.
The dominant allele.
A dominant allele
when one allele is completely dominant over another allele, then it masks the expression of the second allele so the allele that masks the effect is called dominant allele and the allele whos effect is masked is called recessive allele
A dominant allele will mask the prsence of a recssive allele
When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
A dominant one
Two recessive alleles can not take over a dominant allele because there are only two alleles in a pair. This can only happen if there is a mutation because the dominant always takes over the recessive.
The recessive allele.
Aa. This is the heterozygous condition. Two alleles, one of which is dominant and masks the expression ( to varying degrees ) of the other allele. 'A' dominant and 'a' recessive. So, if the trait in question is the recessive allele the dominant allele masks its expression and the organism is a ' carrier ' of the trait and can pass it on to progeny.
incomplete dominance
i think its codominance