What is non allelic gene interaction?
Genetic interaction is the set of functional association between genes. One such relationship is epistasis, which is the interaction of non-allelic genes where the effect of one gene is masked by another gene to result either in the suppression of the effect or they both combine to produce a new trait (character).
What is epistasis and its type?
Epistasis is the interaction between genes that influences a phenotype. Genes can either mask each other so that one is considered “dominant” or they can combine to produce a new trait. It is the conditional relationship between two genes that can determine a single phenotype of some traits.
What are Interallelic interactions?
Intragenic interaction, also called as interallelic interaction is a type of gene interaction in which the alleles of the same gene interact with each other to deviate from the mendelian inheritance patterns. Incomplete dominance, Codominance and Multiple allelism are the examples of intragenic interaction.
What do you mean by non allelic?
: not behaving as alleles toward one another nonallelic genes.
What is allelic and non allelic gene?
▪ allelic genes are genes located in the identical loci of homologous chromosomes; ▪ non-allelic genes are genes located in the different loci of homologous chromosomes or. in the non-homologous chromosomes ]
What is the difference between epistasis and pleiotropy?
The basic difference between epistasis and pleiotropy is that epistasis is the phenomenon in which a gene at one site changes the phenotypic expression of a gene at another location whereas pleiotropy explains the phenomenon in which a single gene affects several phenotypic traits.
What is an epistatic interaction?
Epistasis is an interaction at the phenotypic level of organization. The genes that are involved in a specific epistatic interaction may still show independent assortment at the genotypic level. In such cases, however, the phenotypic ratios may appear to deviate from those expected with independent assortment.
What is the difference between epistasis and dominance?
Dominance refers to a relationship between two alleles or variants of the same gene, whereas epistasis refers to a relationship between alleles of two different genes.
What is intergenic and intragenic interaction?
Intergenic interaction is shown by polygenes. This type of interaction occurs when two or more alleles of different genes present on same or different chromosomes interact to produce a cumulative effect. Multiple alleles, co-dominance and incomplete dominance are the examples of intragenic interactions.
What is the difference between intragenic and intergenic interaction?
The main difference between intragenic and intergenic suppressor mutation is that intragenic suppressor mutation occurs in the same gene as the original mutation whereas intergenic suppressor mutation occurs somewhere else in the genome.
What are the types of gene interaction?
There are 8 main different types of gene interaction:
- The interaction between Dominant factors.
- Complementary factors.
- Supplementary factor.
- Epistasis.
- Effect of Inhibitory factor.
- Duplicate factors.
- Multiple factors or Polygenic Inheritance.
- Lethal factor.