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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaBiology concept

This process changes trait frequencies when inherited differences affect survival and reproduction.

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Your new ahaNatural Selection

Natural selection requires heritable variation linked to differences in reproductive success. Source: Natural selection ↗

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More from From Cells to Species

A few more worth knowing.

  1. 05This term describes change in populations' inherited characteristics over generations.RECALL
    Evolution

    Evolution describes gradual change across generations, driven largely by natural selection acting on genetic variation.

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  2. 06Under the biological definition, members of this group can interbreed and produce fertile offspring.RECALL
    Species

    A species is generally defined by the ability of its members to interbreed and produce fertile offspring.

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  3. 07These inherited DNA sequences can encode functional products such as proteins or RNA.RECALL
    Genes

    Genes are DNA segments coding for specific traits, passed from parents to offspring during reproduction.

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