Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
Why Transcription Requires Changes in
Chromatin Structure and Nucleosome
Position?
Gene regulation is a mechanism which acts to either induce or repress the gene expression. It includes chemical and structural changes in genetic material or mechanism which modulates mRNA translation, or binding of specific proteins to a particular DNA element for regulating transcription.
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