kin selection

(redirected from Kin selected altruism)
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kin selection

n.
A biological theory stating that a gene that causes an organism to exhibit behavior detrimental to its survival will increase in frequency in a population if that behavior benefits the organism's relatives, which will pass the gene on to subsequent generations.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

kin selection

a form of selection favouring altruistic (self-sacrificing) behaviour towards relatives. Such a process ensures that even if the chances of an individual's survival are reduced, some of his or here genes will survive in the relative.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005