Question
Download Solution PDFThe phenomenon of the interaction between nonallelic genes at two or more loci resulting in one gene masking the phenotypic expression of another gene, is known as:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFKey Points
- Epistasis is the phenomenon where one gene masks the phenotypic expression of another gene at a different locus.
- It involves the interaction between nonallelic genes, meaning genes that are not alleles of each other.
- This interaction can modify the expected phenotypic ratios in genetic crosses.
- Epistasis is different from other genetic interactions like linkage, where genes are located close to each other on the same chromosome.
Additional Information
- Linkage refers to genes located close to each other on the same chromosome that tend to be inherited together.
- Incomplete inheritance (or incomplete dominance) occurs when the phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.
- Complete inheritance (or complete dominance) occurs when the phenotype of the heterozygote is the same as the phenotype of the dominant homozygote.
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