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What is Heterochrony in Biology? PDF | Download eBooks

Learn Heterochrony definition in biology with explanation to study “What is Heterochrony”. Study heterochrony explanation with biology terms to review biology course for online degree programs.

Heterochrony Definition

  • Heterochrony is an evolutionary change in the rate or timing of developmental events.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Heterochrony Explanation

In evolutionary developmental biology, heterochrony is a developmental change in the timing or rate of events, leading to changes in size and shape of organs and features over evolutionary time scales. Heterochrony can be divided into intraspecific heterochrony that explains variation within a species, and interspecific heterochrony that explains developmental variation phylogenetically, in the timing or rate of events of a descendent species with respect to an ancestral species.

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