What is the definition of epistasis?

Epistasis is a genetic concept that refers to the interaction between different genes at different loci (positions) on the DNA, where the expression of one gene masks or modifies the expression of another gene. In other words, the alleles (alternative forms of a gene) at one gene locus can affect or suppress the phenotypic outcome of alleles at another gene locus. This interaction can result in the alteration of the phenotypic ratio expected from a simple monohybrid or dihybrid cross. Epistasis can be classified into different types, including dominant epistasis, recessive epistasis, and duplicate gene action, among others.

To find the definition of the term "epistasis," you can start by doing a quick search on a reliable online dictionary or reference website. Here's a step-by-step process to help you find the definition:

1. Open a web browser and go to a popular search engine such as Google.
2. In the search bar, type "epistasis definition."
3. Click on the search button or hit enter.
4. The search results will display several websites with definitions of the term.
5. Look for reputable sources such as dictionaries, scientific websites, or educational institutions. Examples include Merriam-Webster, Oxford Dictionary, or science-specific websites.
6. Click on one of the relevant search results.
7. On the webpage, you should find the definition of "epistasis" along with any additional information or examples that may be provided.
8. Read and understand the definition to explore the meaning of epistasis.

Remember to critically evaluate the sources you use and cross-reference the information if necessary to ensure accuracy.