The restriction enzymes KpnI and Acc65I recognize and cleave the same 6 bp sequence. However, the sticky end formed from KpnI cleavage cannot be ligated directly to the sticky end formed from Acc651 cleavage. ↓ 5' 'GG TACC 3' 3' CCATGG 5' ↑ Kpnl What could explain this? 5' GGTACC 3' 3' C CAT GG 5' Acc65l Each restriction enzyme breaks different bonds within the 6 bp sequence. Sticky ends can never be joined without a chemically synthesized DNA linker. One or both restrictions enzymes do not produce an overhang at the cleavage site. One of the restriction enzymes removes the sticky end created by the other enzyme.
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.
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