enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. DNA synthesis - Wikipedia

    en.wikipedia.org/wiki/DNA_synthesis

    DNA synthesis occurs in all eukaryotes and prokaryotes, as well as some viruses. The accurate synthesis of DNA is important in order to avoid mutations to DNA. In humans, mutations could lead to diseases such as cancer so DNA synthesis, and the machinery involved in vivo, has been studied extensively throughout the decades. In the future these ...

  3. In vitro recombination - Wikipedia

    en.wikipedia.org/wiki/In_vitro_recombination

    DNA polymerase can use these single–stranded primers to initiate second strand DNA synthesis on the mRNA templates. After the single-stranded DNA molecules are converted into double-stranded DNA molecules by DNA polymerase, they are inserted into vectors and cloned. To do this, the cDNA are frequently methylated with a specific methyl ...

  4. DNA - Wikipedia

    en.wikipedia.org/wiki/DNA

    In biology, parts of the DNA double helix that need to separate easily, such as the TATAAT Pribnow box in some promoters, tend to have a high AT content, making the strands easier to pull apart. [29] In the laboratory, the strength of this interaction can be measured by finding the melting temperature T m necessary to break half of the hydrogen ...

  5. Eukaryotic DNA replication - Wikipedia

    en.wikipedia.org/wiki/Eukaryotic_DNA_replication

    Owing to the relatively short nature of the eukaryotic Okazaki fragment, DNA replication synthesis occurring discontinuously on the lagging strand is less efficient and more time-consuming than leading-strand synthesis. DNA synthesis is complete once all RNA primers are removed and nicks are repaired. Depiction of DNA replication at replication ...

  6. DNA replication - Wikipedia

    en.wikipedia.org/wiki/DNA_replication

    As DNA synthesis continues, the original DNA strands continue to unwind on each side of the bubble, forming a replication fork with two prongs. In bacteria, which have a single origin of replication on their circular chromosome, this process creates a "theta structure" (resembling the Greek letter theta: θ). In contrast, eukaryotes have longer ...

  7. S phase - Wikipedia

    en.wikipedia.org/wiki/S_phase

    S phase (Synthesis phase) is the phase of the cell cycle in which DNA is replicated, occurring between G 1 phase and G 2 phase. [1] Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase are tightly regulated and widely conserved.

  8. Trinucleotide repeat expansion - Wikipedia

    en.wikipedia.org/wiki/Trinucleotide_repeat_expansion

    When a DNA trinucleotide repeat sequence is damaged, it may be repaired by processes such as homologous recombination, non-homologous end joining, mismatch repair or base excision repair. Each of these processes involves a DNA synthesis step in which strand slippage might occur leading to trinucleotide repeat expansion. [4]

  9. G1 phase - Wikipedia

    en.wikipedia.org/wiki/G1_phase

    Schematic karyogram of the human chromosomes, showing their usual state in the G 0 and G 1 phase of the cell cycle. At top center it also shows the chromosome 3 pair in metaphase (annotated as "Meta."), which takes place after having undergone DNA synthesis which occurs in the S phase (annotated as S) of the cell cycle.