3a) In eukaryotic cells that lack telomerase, the telomeres at the ends of the chromosomes gradually get shorter with each round of DNA replication. Describe or explain why the "normal" DNA replication machinery, excluding telomerase, can't completely and accurately replicate all the DNA at the ends of linear chromosomes. Please note that the question does NOT ask you to describe what telomerase does - it asks you to explain why cells without telomerase have this problem.
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.
3a) In eukaryotic cells that lack telomerase, the telomeres at the ends of the chromosomes gradually get shorter with each round of
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