In this article we will discuss about:- 1. Meaning of Gene Interactions 2. Characteristics of Gene Interaction 3. Gene Interaction for Comb Shape in Poultry. Meaning of Gene Interactions: When expression of one gene depends on the presence or absence of another gene in an individual, it is known as gene interaction. The interaction of genes at different loci that [...]
In this article we will discuss about the Similarities and Dissimilarities between Epistasis and Dominance. Similarities between Epistasis and Dominance: Epistasis: 1. Epistasis genes always affect the same character. 2. Epistasis involves nuclear genes. Dominance: 1. Dominant gene also affects a particular character. 2. Dominance also involves nuclear genes. Dissimilarities between Epistasis and Dominance: Epistasis: 1. Epistasis refers to interaction [...]
The following points highlight the top six types of epistasis gene interaction. The types are: 1. Recessive Epistasis 2. Dominant Epistasis 3. Dominant [Inhibitory] Epistasis 4. Duplicate Recessive Epistasis 5. Duplicate Dominant Epistasis 6. Polymeric Gene Interaction. Epistasis Gene Interaction: Type # 1. Recessive Epistasis [9:3:4 Ratio]: When recessive alleles at one locus mask the expression of both (dominant and [...]