Exam 2 new vocab.txt

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rincrocci
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229045
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Exam 2 new vocab.txt
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2013-08-03 15:40:12
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cell bio exam new vocab words
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cell bio exam 2
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  1. Zipcode
    molecular signals that directs mRNA or protein from where it is produced to the cytoplasm of the cell.
  2. RNP
    a nucleoprotein that contains RNA, that combines ribonucleic acid and protein together. A few examples are known like the ribosome, the enzyme telomerase, vault ribonucleoproteins, proteins and small nuclear RNPs (snRNPs). RNP in snRNPs has an RNA-binding motif in its RNA-binding protein.
  3. Morphogenetic gradient
    a gradient of morphogenic genes or proteins. The gradient helps set up polarity in the developing embryo. Anterior, posterior, dorsal, ventral.
  4. FISH
    Fluorescent in situ hybridization. It is used to detect and localize the presence or absence of specific DNA sequences on chromosomes. FISH uses fluorescent probes that bind only to those parts of the chromosome with which they show a high degree of sequence similarity. FISH is used for finding specific features in DNA. FISH can also be used to detect and localize specific mRNAs within tissue samples. It can help define the spatial-temporal patterns of gene expression within cells and tissues.
  5. FISH-TSA
    FISH combined with Tyramide Signal Amplification. Used to identify specific DNA or RNA molecules with fluorescent tags and enzyme-linked fluorescence amplification
  6. Immunolocalization
    use of immunologic techniques, including specific antibody, to identify the location of molecules or structures within cells or tissues.
  7. Immunoprecipitation
    a procedure used to isolate target molecules with which antibodies react. Precipitation results when insoluble antigen-antibody complexes are formed by the reaction between soluble antigens and antibodies.
  8. Mother centriole
    The older of the two centrioles in the pair. It has distal and subdistal appendages.
  9. Daughter centriole
    The younger of the two centrioles. It is lacking distal and subdistal appendages.
  10. Pluripotent stem cell
    The progenitor of all cells. The cell has the ability to develop into any cell type.
  11. Committed stem cell
    a stem cell that has begun to differentiate into the cell or cell line that will result.
  12. Gene knockdown
    The alteration of a gene’s function so that it is conditionally expressed, a maneuver used when complete gene knockout would be lethal to the organism
  13. Gene knockout
    replacement of a normal gene with a mutant allele
  14. Co-precipitation
    Precipitation of unbound antigen along with an antigen-antibody complex; may occur particularly when a soluble complex is precipitated by a second antibody specific for the Fc fragment of the immunoglobulin of the complex.
  15. Cytonemethin
    cellular projections that are specialized for exchange of signaling proteins between cells. Extending directly to cells that receive signaling proteins. Cytonemes also extend directly from cells that receive signaling proteins to cells that make them. A type of filopodium.
  16. Filipodia
    A thin filamentous projection or pseudopodium of a cell’s plasma membrane that has a core composed of tightly bundled, parallel actin filaments.

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