0 someone who has a child or children but no husband, wife, or partner who lives with them -- 单亲父亲；单亲母亲
Creating a child with literally a "single parent" would, however, create significant concerns related to inbreeding.
A sizeable proportion of the sample (44.9%) lived with a single parent, and more than one third received public assistance (36.2%).
Years with a single parent indexes the number of years from birth to age 11 years that the study member lived with a single parent.
These included exposure to other substances prenatally, socioeconomic status, single parent status, parent antisocial behavior, and maternal responsiveness.
At the time of interview, five were living with both parents, three with a single parent and one young adult was living on his own.
About 40% of the boys lived with a single parent, and about 40% of the caretakers received public assistance.
The linkage phase defines the configuration of alleles of a pair of heterozygous loci over the homologous chromosomes in a single parent.
Heritabilities were calculated from single parent regressions involving the regression of family means onto parental means.
