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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.
Fertility declines have been seen during economic recessions. This phenomenon is seen as a result of pregnancy postponement, especially of first births. But this effect can be short-term and largely compensated for during later times of economic prosperity. [11] Increased unemployment is generally associated with lower fertility. [11]
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.
Family economics applies economic concepts such as production, division of labor, distribution, and decision making to the family. It is used to explain outcomes unique to family—such as marriage, the decision to have children, fertility, time devoted to domestic production, and dowry payments using economic analysis.
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.
The data indicated a widening disparity in black-white infant mortality as maternal ages increase. Subsequently, Geronimus proposed the "weathering hypothesis", which she initially conceived as a potential explanation for the patterns of racial variation in infant mortality with increasing maternal age. [11]
Here are some Mandela effect examples that have confused me over the years — and many others too. Grab your friends and see which false memories you may share. 1.
The concept of human development expands upon the notion of economic development to include social, political and even ethical dimensions.Since the mid-twentieth century, international organisations such as the United Nations and the World Bank have adopted human development as a holistic approach to evaluating a country’s progress that considers living conditions, social relations ...