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In genetics, a maternal effect occurs when the phenotype of an organism is determined by the genotype of its mother. [1] For example, if a mutation is maternal effect recessive, then a female homozygous for the mutation may appear phenotypically normal, however her offspring will show the mutant phenotype, even if they are heterozygous for the mutation.
In plants, POC over the allocation of resources to the brood members may affect both brood size (number of seeds matured within a single fruit) and seed size. [3] Concerning brood size, the most economic use of maternal resources is achieved by packing as many seeds as possible in one fruit, i.e., minimizing the cost of packing per seed.
A study published in Nature in 2009 found that when using the Human Development Index instead of the GDP as measure for economic development, fertility follows a J-shaped curve: with rising economic development, fertility rates indeed do drop at first but then begin to rise again as the level of social and economic development increases while ...
Multiethnic studies have yielded significant data demonstrating that weathering—accumulated health risk due to social, economic and environmental stressors—is a manifestation of social stratification that systemically influences disparities in health and mortality between dominant and minority communities.
The motherhood penalty refers to the economic disadvantages women face in the workplace as a result of becoming mothers. [1] [2] [3] This sociological concept highlights how working mothers often experience wage reductions, diminished perceived competence, and fewer career advancement opportunities compared to their childless counterparts.
While one in three of all Americans habitually lives paycheck to paycheck, new research revealed women and Generation Z, or adults ages 18 to 28, currently experience the most financial stress.
Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.
8. Mental Health Education is the New Sex Education. According to the Hims survey, 26% of parents have educated their children about mental health (an equal percentage of moms and dads) but 90% ...