Difference between revisions of "HDelgadi Week 11"

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===10 Term Definitions===
 
===10 Term Definitions===
 
#Obligate-Capable of functioning or surviving only in a particular condition or by assuming a particular behavior  
 
#Obligate-Capable of functioning or surviving only in a particular condition or by assuming a particular behavior  
*Mozo M.V., Anghel A.(2005) Biology Online <http://www.biology-online.org/dictionary/Obligate>. Accessed 11 November 2013.
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#*Mozo M.V., Anghel A.(2005) Biology Online <http://www.biology-online.org/dictionary/Obligate>. Accessed 11 November 2013.
 
#Paralogs-genes or gene products that are homologous (descended from a common ancestor) and that result from a gene duplication. Paralogous genes typically occur in a single species but are also visible when species are compared. For example, human hemoglobin alpha is paralogus to human hemoglobin beta. human hemoglobin alpha is also paralogous to horse hemoglobin beta, but is orthologous to horse hemoglobin alpha  
 
#Paralogs-genes or gene products that are homologous (descended from a common ancestor) and that result from a gene duplication. Paralogous genes typically occur in a single species but are also visible when species are compared. For example, human hemoglobin alpha is paralogus to human hemoglobin beta. human hemoglobin alpha is also paralogous to horse hemoglobin beta, but is orthologous to horse hemoglobin alpha  
 
*Mozo M.V., Anghel A.(2005) Biology Online <http://www.biology-online.org/dictionary/Paralogy>. Accessed 11 November 2013.
 
*Mozo M.V., Anghel A.(2005) Biology Online <http://www.biology-online.org/dictionary/Paralogy>. Accessed 11 November 2013.

Revision as of 04:59, 12 November 2013

10 Term Definitions

  1. Obligate-Capable of functioning or surviving only in a particular condition or by assuming a particular behavior
  2. Paralogs-genes or gene products that are homologous (descended from a common ancestor) and that result from a gene duplication. Paralogous genes typically occur in a single species but are also visible when species are compared. For example, human hemoglobin alpha is paralogus to human hemoglobin beta. human hemoglobin alpha is also paralogous to horse hemoglobin beta, but is orthologous to horse hemoglobin alpha
  1. Entner-Doudoroff pathway-a degradative pathway for carbohydrates in certain microorganisms (for example, Pseudomonas sp.) that lack hexokinase, phosphofructokinase, and glyceraldehyde-3-phosphate dehydrogenase
  1. Exogenous-originating outside or caused by factors outside the organism
  1. Halophilic-pertaining to or characterized by an affinity for salt; requiring a high concentration of salt for optimal growth
  1. Auxotroph-A mutated microorganism having nutritional requirements that differ from those of unmutated microorganisms from the same strain
  1. Diaminopimelate-C7H14O4N2 A compound that serves as a component of cell wall mucopeptide in some bacteria and as a source of lysine in all bacteria. Abbreviated DAP
  1. Symporter-A symporter is an integral membrane protein that is involved in movement of two or more different molecules or ions across a phospholipid membrane such as the plasma membrane in the same direction, and is, therefore, a type of cotransporter. Typically, the ion(s) will move down the electrochemical gradient, allowing the other molecule(s) to move against the concentration gradient. The movement of the ion(s) across the membrane is facilitated diffusion, and is coupled with the active transport of the molecule(s). Although two or more types of molecule are transported, there may be several molecules transported of each type
  1. Porins-porins are beta barrel proteins that cross a cellular membrane and act as a pore through which molecules can diffuse.[1] Unlike other membrane transport proteins, porins are large enough to allow passive diffusion, i.e., they act as channels that are specific to different types of molecules. They are present in the outer membrane of Gram-negative bacteria and some Gram-positive bacteria of the group Mycolata (mycolic acid-containing actinomycetes), the mitochondria, and the chloroplast
  1. Sporulation-in biology, a spore is a unit of asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavorable conditions. By contrast, gametes are units of sexual reproduction. Spores form part of the life cycles of many plants, algae, fungi and protozoa.[1] In bacteria, spores are not part of a sexual cycle but are resistant structures used for survival under unfavourable conditions
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