Summaries of Addresses of Presidents of Sections: Natural Selection and Evolutionary Progress

    Article metrics


    HE subject of Prof. Julian S. Huxley's presi- dential address to Section D (Zoology) is the relationship of natural selection and evolution. On a Mendelian planet, such as ours appears to be, evolution is the joint product of mutation and natural selection. Recent work has altered our views as to the details of the process. The action of a particular gene depends on many other genes which act as modifiers; thus selection of the genie background is of great importance. By this means, deleterious effects of an otherwise advantageous mutation can be buffered or even abolished. Dominance and recessivity seem to be due to a similar action on recurrent mutations.

    Access optionsAccess options

    Rent or Buy article

    Get time limited or full article access on ReadCube.


    All prices are NET prices.

    Rights and permissions

    Reprints and Permissions

    About this article

    Further reading


    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.