Select the statement(s) that accurately describe the function of DNA polymerase and the types of mutations that may occur. Point mutations occur when a single nitrogenous base is substituted. Frameshift mutations occur when a nitrogenous base is inserted or deleted. Point mutations are less serious than frameshift mutations, as only a single base pair is affected. DNA has rare mutations during replication because DNA polymerase functions to build and repair errors in nitrogen base pairings of A-G and T-C. DNA has rare mutations during replication because DNA polymerase functions to build and repair errors in nitrogen base pairings of A-T and G-C. Point mutations occur when a nitrogenous base is inserted or deleted. Frameshift mutations occur when a single nitrogenous based is substituted.
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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