Cell Biology day 4

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Cell Biology day 4
2015-07-15 16:22:36
day 4 of cell biology
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  1. Operon
    A unit of genetic function common in bacteria and phages, consisting of coordinately regulated clusters of genes with related functions.
  2. Light microscope
    An optical instrument with lenses that refract (bend) visible light to magnify images of specimens.
  3. Organelle
    One of several formed bodies with specialized functions, suspended in the cytoplasm of eukaryotic cells.
  4. Mutation
    A change in the nucleotide sequence in a cell (or virus).
  5. Guanine
    (G), a nitrogenous base of the purine family, found in nucleotides.
  6. Eukaryotic cell
    A type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles, present in protists, plants, fungi, and animals; also called eukaryote.
  7. Transmission electron microscope (TEM)
    A microscope that passes an electron beam through very thin sections, primarily used to study the internal ultrastructure of cells.
  8. Hypothetico-deductive science
    Involves making a hypothesis to explain observations and testing the hypothesis by experiment
  9. Anticodon
    A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule.
  10. Mitosis
    A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Mitosis conserves chromosome number by equally allocating replicated chromosomes to each of the daughter nuclei.