|natural selection that favors altruistic behavior toward close relatives resulting in an increase in the individual's genetic contribution to the gene pool|
|adapting to the prevailing conditions and producing offspring that survive to reproductive age; contributing to the gene pool of the next generation|
diploid dip·loid (dĭp'loid')
Having two sets of chromosomes or double the haploid number of chromosomes in the germ cell, with one member of each chromosome pair derived from the ovum and one from the spermatazoon. The diploid number, 46 in humans, is the normal chromosome complement of an organism's somatic cells. n.
A diploid organism or cell.
|diploid (dĭp'loid') Pronunciation Key
Having paired sets of chromosomes in a cell or cell nucleus. In diploid organisms that reproduce sexually, one set of chromosomes is inherited from each parent. The somatic cells of most animals are diploid. Compare haploid. See Note at mitosis.