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  2. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    RNA folding problem: Is it possible to accurately predict the secondary, tertiary and quaternary structure of a polyribonucleic acid sequence based on its sequence and environment? Protein design : Is it possible to design highly active enzymes de novo for any desired reaction?

  3. Hardy–Weinberg principle - Wikipedia

    en.wikipedia.org/wiki/Hardy–Weinberg_principle

    Reginald Punnett, unable to counter Yule's point, introduced the problem to G. H. Hardy, a British mathematician, with whom he played cricket. Hardy was a pure mathematician and held applied mathematics in some contempt; his view of biologists' use of mathematics comes across in his 1908 paper where he describes this as "very simple": [ 13 ]

  4. Gompertz function - Wikipedia

    en.wikipedia.org/wiki/Gompertz_function

    Population biology is especially concerned with the Gompertz function. This function is especially useful in describing the rapid growth of a certain population of organisms while also being able to account for the eventual horizontal asymptote, once the carrying capacity is determined (plateau cell/population number). It is modeled as follows:

  5. Sigmoid function - Wikipedia

    en.wikipedia.org/wiki/Sigmoid_function

    Definition [ edit ] A sigmoid function is a bounded , differentiable , real function that is defined for all real input values and has a non-negative derivative at each point [ 1 ] [ 2 ] and exactly one inflection point .

  6. Nonconcatenative morphology - Wikipedia

    en.wikipedia.org/wiki/Nonconcatenative_morphology

    Diagram of one version of the derivation of the Arabic word muslim in autosegmental phonology, with root consonants associating (shown by dotted grey lines). Nonconcatenative morphology , also called discontinuous morphology and introflection , is a form of word formation and inflection in which the root is modified and which does not involve ...

  7. Inflection point - Wikipedia

    en.wikipedia.org/wiki/Inflection_point

    A rising point of inflection is a point where the derivative is positive on both sides of the point; in other words, it is an inflection point near which the function is increasing. For a smooth curve given by parametric equations , a point is an inflection point if its signed curvature changes from plus to minus or from minus to plus, i.e ...

  8. Systems biology - Wikipedia

    en.wikipedia.org/wiki/Systems_biology

    Systems biology is the computational and mathematical analysis and modeling of complex biological systems.It is a biology-based interdisciplinary field of study that focuses on complex interactions within biological systems, using a holistic approach (holism instead of the more traditional reductionism) to biological research.

  9. Morphological derivation - Wikipedia

    en.wikipedia.org/wiki/Morphological_derivation

    Generally speaking, inflection applies in more or less regular patterns to all members of a part of speech (for example, nearly every English verb adds -s for the third person singular present tense), while derivation follows less consistent patterns (for example, the nominalizing suffix -ity can be used with the adjectives modern and dense ...