14. Guanine normally pairs with cytosine. Oxidative damage can result in the modification of guanine to 8-oxoguanine. What is the potential mismatch in nucleotides that can occur following replication? 8-oxoguanine pairs with Adenine 8-oxoguanine pairs with thymidine Thymidine pairs with adenine Guanine pairs with Cytosine None of these choices. Question 8 The key enzyme that transfers an a-amino group from an amino acid to an a-keto acid is : Glutamate Dehydrogenase Transaminase Synthetase Glutamine PRPP Amidotransferase Glutaminase

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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.