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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 maternal effect genes, the RNA or protein from the mother’s gene is deposited into the oocyte or embryo before the embryo can express its own zygotic genes. Hunchback is a morphogen, meaning the concentration gradient of Hunchback at a specific region determines the segment or body part it develops into.
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.
Gene–environment interaction occurs when genetic factors and environmental factors interact to produce an outcome that cannot be explained by either factor alone. [6] For example, a study found that individuals carrying the genetic variant 5-HTT (the short copy) that encodes the serotonin transporter were at a higher risk of developing depression when exposed to adverse childhood experiences ...
With a capacity of 50 pounds of grain or pellets and 25 pounds of dog/cat food, this feeder is designed with larger pets (think horses) in mind, though the Quick Feeder is versatile, with portions ...
The gap genes code for transcription factors that regulate the expression of pair-rule genes and homeotic genes [8] by competing for binding to their enhancer regions. It has been demonstrated that gap gene expression in the Drosophila blastoderm exhibit a property called canalization, a property of developing organisms to produce a consistent phenotype despite variations in genotype or ...
Planning and Economic Development Division is responsible for administering the Defendant’s planning and economic development activities. SUBJECT PROPERTY 9. Evergreen Terrace is an eight-building apartment complex in Joliet with 356 housing units. The five buildings located at 350, 358, 362, 363, and 366 North Broadway Street are
The 1-ingredient upgrade for better scrambled eggs (it's my favorite Italian staple) News. News. NBC Universal. Bourbon Street reopens with heavy law enforcement presence. News. USA TODAY.