BIOA01H3 Chapter Notes - Chapter 12: Helicase, Dna Ligase, Phosphodiester Bond

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BIOA01H3 Full Course Notes
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Dna: the molecule that is the genetic material of all living organism. Living r form can be converted into s form from some factor of the death s form. Conclusion: non-lethal form can be converted into lethal form, through the transforming principle and the process of genetic change transformation. Used r and s, labeled proteins, dna and rna, when they destroyed the proteins and rna same affect happened, but when they destroyed the dna nothing happened. Hershey-chase experiment determined that dna held hereditary material. Virus: are infectious agents that contain dna or rna surrounded by a protein coat: can only reproduces within a host cell. Phages labeled with radioactive sulfur indicated labeled proteins. Phages labeled with radioactive phosphorous indicated labeled dna: because dna contains phosphorus but not sulfur, and proteins contain sulfur not phosphorus. Radioactive sulfur phages interacted with bacteria, put in blender spun, put in centrifuge, Supernatant contain radioactivity but bacteria did not,

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