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  2. Teleology in biology - Wikipedia

    en.wikipedia.org/wiki/Teleology_in_biology

    Teleology, from Greek τέλος, telos "end, purpose" [3] and -λογία, logia, "a branch of learning", was coined by the philosopher Christian von Wolff in 1728. [4] The concept derives from the ancient Greek philosophy of Aristotle, where the final cause (the purpose) of a thing is its function. [5]

  3. Research question - Wikipedia

    en.wikipedia.org/wiki/Research_question

    A research question is "a question that a research project sets out to answer". [1] Choosing a research question is an essential element of both quantitative and qualitative research . Investigation will require data collection and analysis, and the methodology for this will vary widely.

  4. Outgroup (cladistics) - Wikipedia

    en.wikipedia.org/wiki/Outgroup_(cladistics)

    A simple cladogram showing the evolutionary relationships between four species: A, B, C, and D. Here, Species A is the outgroup, and Species B, C, and D form the ingroup. In cladistics or phylogenetics, an outgroup [1] is a more distantly related group of organisms that serves as a reference group when determining the evolutionary relationships of the ingroup, the set of organisms under study ...

  5. HESI exam - Wikipedia

    en.wikipedia.org/wiki/Hesi_exam

    The exam is 285 minutes (4 hours and 45 minutes) and consists of 275 scored questions. There are eight topics covered in separate subtests: grammar, reading comprehension, vocabulary and general knowledge, basic math skills, anatomy and physiology, biology, and chemistry. [3]

  6. Test cross - Wikipedia

    en.wikipedia.org/wiki/Test_cross

    [1] In a test cross, the individual in question is bred with another individual that is homozygous for the recessive trait and the offspring of the test cross are examined. [2] Since the homozygous recessive individual can only pass on recessive alleles, the allele the individual in question passes on determines the phenotype of the offspring. [3]

  7. Ames test - Wikipedia

    en.wikipedia.org/wiki/Ames_test

    The Ames test is a widely employed method that uses bacteria to test whether a given chemical can cause mutations in the DNA of the test organism. More formally, it is a biological assay to assess the mutagenic potential of chemical compounds. [ 1 ]

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  9. Experiment - Wikipedia

    en.wikipedia.org/wiki/Experiment

    Most often the value of the negative control is treated as a "background" value to subtract from the test sample results. Sometimes the positive control takes the quadrant of a standard curve. An example that is often used in teaching laboratories is a controlled protein assay. Students might be given a fluid sample containing an unknown (to ...