Allelic and non-allelic interactions
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i. Intragenic interactions :
Occur between the alleles of same gene e.g. incomplete dominance and co-dominance. It also occurs between the multiple allele series of
a gene.
ii. Intergenic (non-allelic) interactions:
Occur between the allels of different-
genes present on the same or different-
chromosomes. e.g. pleiotropy, polygenes,
epistasis, supplermetary and complementry
genes, etc
Answer:
These kinds of genetic interactions between the alleles of a single gene are referred to as allelic or intra- allelic interactions.
Non-allelic or inter-allelic interactions also occur where the development of single character is due to two or more genes affecting the expression of each other in various ways.