To examine: Whether the statement “DNA repair mechanism all depend on the existence of two copies of the genetic information, one in each of the two homologous chromosomes” is true or false. Introduction: Most organisms obtain two set of chromosomes one set from each parent called homologous chromosomes. During DNA replication , each of the original DNA strands serves as a template for the formation of entire new strand. DNA polymerase synthesize DNA strand by adding deoxyribonucleotides on the single strand DNA template. To maintain the genetic stability, the accuracy of the DNA replication is must, but also there is another mechanism called DNA repair mechanism that repairs the accidental lesions that DNA continually suffers due to replication or other types of damages.

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Chapter 5, Problem 5P

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To examine: Whether the statement “DNA repair mechanism all depend on the existence of two copies of the genetic information, one in each of the two homologous chromosomes” is true or false.

Introduction: Most organisms obtain two set of chromosomes one set from each parent called homologous chromosomes. During DNA replication, each of the original DNA strands serves as a template for the formation of entire new strand. DNA polymerase synthesize DNA strand by adding deoxyribonucleotides on the single strand DNA template. To maintain the genetic stability, the accuracy of the DNA replication is must, but also there is another mechanism called DNA repair mechanism that repairs the accidental lesions that DNA continually suffers due to replication or other types of damages.

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