Elaborate repair mechanisms that prevent permanent mutations in DNA are associated with replication, yet no similar repair process is associated with transcription. Can you think of a reason for this difference between replication and transcription? (Hint: Think about the relative effects of a permanent mutation in a DNA molecule and one in an RNA molecule.)
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.
Elaborate repair mechanisms that prevent permanent mutations in DNA
are associated with replication, yet no similar repair process is
associated with transcription. Can you think of a reason for this
difference between replication and transcription? (Hint: Think about the
relative effects of a permanent mutation in a DNA molecule and one in
an RNA molecule.)
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