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  2. Biological applications of bifurcation theory - Wikipedia

    en.wikipedia.org/wiki/Biological_applications_of...

    As ε decreases, the fixed points come together and annihilate one another; As ε increases, the fixed points appear. dx/dt is denoted as v. Nonlinear dynamical systems can be most easily understood with a one-dimensional example system where the change in some quantity x (e.g. protein concentration) abundance depends only on itself:

  3. Fixation (population genetics) - Wikipedia

    en.wikipedia.org/wiki/Fixation_(population_genetics)

    For example, if a population includes allele A with frequency equal to 20%, and allele a with frequency equal to 80%, there is an 80% chance that after an infinite number of generations a will be fixed at the locus (assuming genetic drift is the only operating evolutionary force).

  4. Fixed allele - Wikipedia

    en.wikipedia.org/wiki/Fixed_allele

    One example of a fixed allele is the DGAT-1 exon 8 in Anatolian buffalo. This is a non-conservative mutation in the DGAT-1 allele, which produces a protein with a lysine at position 232 instead of an alanine. This mutation produces a protein different from the wild type of protein. This mutation in cattle affects milk production.

  5. Locus (genetics) - Wikipedia

    en.wikipedia.org/wiki/Locus_(genetics)

    In genetics, a locus (pl.: loci) is a specific, fixed position on a chromosome where a particular gene or genetic marker is located. [1] Each chromosome carries many genes, with each gene occupying a different position or locus; in humans, the total number of protein-coding genes in a complete haploid set of 23 chromosomes is estimated at ...

  6. Ordered graph - Wikipedia

    en.wikipedia.org/wiki/Ordered_graph

    The induced width of an ordered graph is the width of its induced graph. [2] Given an ordered graph, its induced graph is another ordered graph obtained by joining some pairs of nodes that are both parents of another node. In particular, nodes are considered in turn according to the ordering, from last to first. For each node, if two of its ...

  7. Directional selection - Wikipedia

    en.wikipedia.org/wiki/Directional_selection

    Three different types of genetic selection. On each graph, the x-axis variable is the type of phenotypic trait and the y-axis variable is the amount of organisms. Group A is the original population and Group B is the population after selection. Top (Graph 1) represents directional selection with one extreme favored.

  8. Punnett square - Wikipedia

    en.wikipedia.org/wiki/Punnett_square

    Punnett squares for each combination of parents' colour vision status giving probabilities of their offsprings' status, each cell having 25% probability in theory. The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.

  9. Biological network - Wikipedia

    en.wikipedia.org/wiki/Biological_network

    A biological network is a method of representing systems as complex sets of binary interactions or relations between various biological entities. [1] In general, networks or graphs are used to capture relationships between entities or objects. [1]