When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Vocative case - Wikipedia

    en.wikipedia.org/wiki/Vocative_case

    The principal marker is the vocative particle a, which causes lenition of the following initial letter. In the singular there is no special form, except for first declension nouns. These are masculine nouns that end in a broad (non-palatal) consonant, which is made slender (palatal) to build the singular vocative (as well as the singular ...

  3. Nucleoprotein - Wikipedia

    en.wikipedia.org/wiki/Nucleoprotein

    Cross-sectional drawing of the Ebola virus particle, with structures of the major proteins shown and labelled on the right. Nucleoproteins tend to be positively charged, facilitating interaction with the negatively charged nucleic acid chains. The tertiary structures and biological functions of many nucleoproteins are understood.

  4. Biological tests of necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Biological_tests_of...

    Tests of sufficiency in biology are used to determine if the presence of an element permits the biological phenomenon to occur. In other words, if sufficient conditions are met, the targeted event is able to take place. However, this does not mean that the absence of a sufficient biological element inhibits the biological event from occurring.

  5. Nucleosome - Wikipedia

    en.wikipedia.org/wiki/Nucleosome

    Nucleosome core particles are observed when chromatin in interphase is treated to cause the chromatin to unfold partially. The resulting image, via an electron microscope, is "beads on a string". The string is the DNA, while each bead in the nucleosome is a core particle. The nucleosome core particle is composed of DNA and histone proteins. [29]

  6. Artificial cell - Wikipedia

    en.wikipedia.org/wiki/Artificial_cell

    An artificial cell, synthetic cell or minimal cell is an engineered particle that mimics one or many functions of a biological cell.Often, artificial cells are biological or polymeric membranes which enclose biologically active materials. [1]

  7. Flocculation - Wikipedia

    en.wikipedia.org/wiki/Flocculation

    The most common used coagulant is alum, Al 2 (SO 4) 3 ·14H 2 O. The chemical reaction involved: Al 2 (SO 4) 3 · 14 H 2 O → 2 Al(OH) 3 (s) + 6 H + + 3 SO 2− 4 + 8 H 2 O. During flocculation, gentle mixing accelerates the rate of particle collision, and the destabilized particles are further aggregated and enmeshed into larger precipitates.

  8. Particulate inheritance - Wikipedia

    en.wikipedia.org/wiki/Particulate_inheritance

    Gregor Mendel, the Father of Genetics William Bateson Ronald Fisher. Particulate inheritance is a pattern of inheritance discovered by Mendelian genetics theorists, such as William Bateson, Ronald Fisher or Gregor Mendel himself, showing that phenotypic traits can be passed from generation to generation through "discrete particles" known as genes, which can keep their ability to be expressed ...

  9. Gene transfer agent - Wikipedia

    en.wikipedia.org/wiki/Gene_transfer_agent

    (4) DNA with similar sequences to the recipient genome undergoes recombination. Whether release of GTA particles leads to transfer of DNA to new genomes depends on several factors. First, the particles must survive in the environment – little is known about this, although particles are reported to be quite unstable under laboratory conditions ...