By Carol Bernstein, Harris Bernstein
Why organisms age and why sexual copy exists are significant unsolved difficulties in biology. This publication presents an built-in rationalization of getting older and intercourse according to present wisdom of DNA harm and service. Key gains* Discusses the universality of the matter of DNA harm* Describes getting older by reason of amassed DNA harm* Considers meiosis as an edition for DNA fix* Discusses mating in eukaryotes as an version for overlaying mutation. Read more...
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Additional resources for Aging, Sex, and DNA Repair
1982). Benzpyrene groups bind preferentially to the DNA of active chromatin in human lung cells. Nucleic Acids Res. 10, 1547-1555. Benbow, R. , Zuccarelli, A. , and Sinsheimer, R. L. (1974). A role for single-strand breaks in bacteriophage phiX174 genetic recombination. J. Mol. Biol. 88, 629-651. , and Cerutti, P. (1986). Ultraviolet radiation inactivates SV40 by disrupting at least four genetic functions. EMBO J. 5, 197-203. Buhl, S. , Setlow, R. , and Regan, J. D. (1974). DNA repair in Potorous tridactylus.
Arrand, J. , and Murray, A. M. (1982). Benzpyrene groups bind preferentially to the DNA of active chromatin in human lung cells. Nucleic Acids Res. 10, 1547-1555. Benbow, R. , Zuccarelli, A. , and Sinsheimer, R. L. (1974). A role for single-strand breaks in bacteriophage phiX174 genetic recombination. J. Mol. Biol. 88, 629-651. , and Cerutti, P. (1986). Ultraviolet radiation inactivates SV40 by disrupting at least four genetic functions. EMBO J. 5, 197-203. Buhl, S. , Setlow, R. , and Regan, J.
T h e s e data support the notion that pyrimidine dimers interrupt normal D N A replication and that synthesis r e s u m e s b e y o n d the dimer. Buhl et al. (1974) s h o w e d that after UV-irradiation replication can eventually b y p a s s these blocking pyrimidine dimers. By 24 hr after UV-irradiation of mammalian cells, the D N A synthesized in these cells w a s in normal-sized s e g m e n t s , even though pyrimidine dimers w e r e still present. This evidence indicates that UV-induced thymine d i m e r s can block D N A replication and that this blockage can be o v e r c o m e eventually by postreplication repair p r o c e s s e s .
Aging, Sex, and DNA Repair by Carol Bernstein, Harris Bernstein