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  2. Timeline of the history of genetics - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_history_of...

    Hershey–Chase experiment proves that phage genetic material is DNA. 1952: The Hershey–Chase experiment proves the genetic information of phages (and, by implication, all other organisms) to be DNA. [29] 1952: an X-ray diffraction image of DNA was taken by Raymond Gosling in May 1952, a student supervised by Rosalind Franklin. [30]

  3. History of genetics - Wikipedia

    en.wikipedia.org/wiki/History_of_genetics

    The history of genetics dates from the classical era with contributions by Pythagoras, Hippocrates, Aristotle, Epicurus, and others. Modern genetics began with the work of the Augustinian friar Gregor Johann Mendel .

  4. Origin of replication - Wikipedia

    en.wikipedia.org/wiki/Origin_of_replication

    The origin of replication (also called the replication origin) is a particular sequence in a genome at which replication is initiated. [1] Propagation of the genetic material between generations requires timely and accurate duplication of DNA by semiconservative replication prior to cell division to ensure each daughter cell receives the full ...

  5. DNA replication - Wikipedia

    en.wikipedia.org/wiki/DNA_replication

    In a cell, DNA replication begins at specific locations, or origins of replication, [10] in the genome [11] which contains the genetic material of an organism. [12] Unwinding of DNA at the origin and synthesis of new strands, accommodated by an enzyme known as helicase , results in replication forks growing bi-directionally from the origin.

  6. Genetics - Wikipedia

    en.wikipedia.org/wiki/Genetics

    This is an accepted version of this page This is the latest accepted revision, reviewed on 22 December 2024. Science of genes, heredity, and variation in living organisms This article is about the general scientific term. For the scientific journal, see Genetics (journal). For a more accessible and less technical introduction to this topic, see Introduction to genetics. For the Meghan Trainor ...

  7. Molecular genetics - Wikipedia

    en.wikipedia.org/wiki/Molecular_genetics

    The discovery of DNA as the blueprint for life and breakthroughs in molecular genetics research came from the combined works of many scientists. In 1869, chemist Johann Friedrich Miescher, who was researching the composition of white blood cells, discovered and isolated a new molecule that he named nuclein from the cell nucleus, which would ultimately be the first discovery of the molecule DNA ...

  8. Last universal common ancestor - Wikipedia

    en.wikipedia.org/wiki/Last_universal_common_ancestor

    [a] [18] The DNA was kept double-stranded by an enzyme, DNA polymerase, which recognises the structure and directionality of DNA. [19] The integrity of the DNA was maintained by a group of repair enzymes including DNA topoisomerase. [20] If the genetic code was based on dual-stranded DNA, it was expressed by copying the information to single ...

  9. Eukaryotic DNA replication - Wikipedia

    en.wikipedia.org/wiki/Eukaryotic_DNA_replication

    The bending of origin DNA by ORC appears to be evolutionarily conserved suggesting that it may be required for the Mcm2-7 complex loading mechanism. [16] [19] When the ORC binds to DNA at replication origins, it serves as a scaffold for the assembly of other key initiation factors of the pre-replicative complex. [20]