parental strand
1Immortal DNA strand hypothesis — The immortal DNA strand hypothesis was proposed in 1975 by John Cairns as a mechanism for adult stem cells to minimize mutations in their genomes.Cairns, J. 1975. Mutation selection and the natural history of cancer. Nature (London) 255: 197… …
2nucleic acid — /nooh klee ik, klay , nyooh /, Biochem. any of a group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides. [1890 95; NUCLE(US) + IC;… …
3cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… …
4Okazaki fragments — Short fragments of newly synthesised DNA strands produced during DNA replication. All the known DNA polymerases can only synthesis DNA in one direction, the 5 to 3 direction. However as the strands separate, replication forks will be moving along …
5DNA methylation — Illustration of a DNA molecule that is methylated at the two center cytosines. DNA methylation plays an important role for epigenetic gene regulation in development and disease. DNA methylation is a biochemical process that is important for… …
6Matthew Meselson — Matthew S. Meselson Born 24 May 1930 (1930 05 24) (age 81) Denver, Colorado, USA Citizenship USA …
7semiconservative — The process of replicating DNA in which the two strands remain intact, separate, and are copied and one parental strand goes to each daughter cell. * * * semi·con·ser·va·tive kən sər vət iv adj relating to or being genetic replication in which a… …
8Homologous recombination — Figure 1. During meiosis, homologous recombination can produce new combinations of genes as shown here between similar but not identical copies of human chromosome 1. Homologous recombination is a type of genetic recombination in which nucleotide …
9heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …
10virus — viruslike, adj. /vuy reuhs/, n., pl. viruses. 1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA …
