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24 wrz 2018 · a simple (in principle) templating mechanism for replicating DNA into two identical copies. Only DNA (and in some instances RNA when, as in the case of the genomes of RNA viruses, it is used as a repository of genetic information) are self-complementary and hence capable of being replicated.
replicates DNA molecules and does so faithfully, how it retrieves genetic information to direct the synthesis of proteins, and how it regulates this flow of genetic information from DNA to protein.
DNA replication: Complementary base pairing produces semiconservative replication. Double helix unwinds. Each strand acts as template. Complementary base pairing ensures that T signals addition of A on new strand, and G signals addition of C.
accurate and complete replication of the DNA is essential to the ability of a cell organism to reproduce. In this chapter and the next, we will examine the process of replication.
DNA REPLICATION MECHANISMS All organisms must duplicate their DNA with extraordinary accuracy before each cell division. In this section, we explore how an elaborate “replication machine” achieves this accuracy, while duplicating DNA at rates as high as 1000 nucleotides per second. Base-Pairing Underlies DNA Replication and DNA Repair
1 dzień temu · View full document. DNA Replication (Bio 401) Overview: Purpose: To produce two identical copies of DNA before cell division. Type: Semiconservative—each new DNA molecule has one original and one new strand. Location: Eukaryotes: Nucleus. Prokaryotes: Cytoplasm. Key Phases: Initiation, elongation, termination.
27 paź 2010 · DNA, RNA, replication, translation, and transcription Overview Recall the central dogma of biology: DNA (genetic information in genes) RNA (copies of genes) proteins (functional molecules) DNA structure One monomer unit = deoxyribonucleic acid • composed of a base, a sugar (deoxyribose), and a phosphate
