An example would be mental retardation caused by an expectant mother's alcohol abuse.
Production of gray offspring from black and white mice mating
Most Environmental factors affect expression of traits specifically polygenic traits . These factors include food , light , exercise , temperature , etc.
Mental retardation
The type of environmental factor, such as the presence of a hormone, that might affect an organism's phenotype is internal
a example of a gene
The old saying is that Phenotype = Genotype + Environmental Factors.
Phenotype is what traits are expressed by the organism. So what ever is the dominant Genotype of the organism will determine the Phenotype. For example a dominant R gene will be the Phenotype in RR and Rr. However, if the organism has two recessive rr then the recessive gene will determine the Phenotype.
Phenotype
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Genes whose effect does not normally occur unless certain environmental factors are present are Conditional mutant. The mutant that has a wild type phenotype under certain environmental conditions and a mutant phenotype under other conditions.
Genetic Predisposition is a genetic effect which influences the phenotype of an organism but which can be modified by the environmental conditions. Genetic testing is able to identify individuals who are genetically predisposed to certain health problems.
Genetic and environmental effects
The phenotype is a physical characteristic that is expressed by the genes. ----- An example of a phenotype is human blood group.
The type of environmental factor, such as the presence of a hormone, that might affect an organism's phenotype is internal
Genes code for the proteins that make up your body and effect your genotype. While environmental effects such as eating habits can effect how ones phenotype (or physical characteristics) looks.
a example of a gene
Genotype codes for phenotype. Phenotype is the expressed trait, for example, black fur. The genome that codes for black fur would be BB for example
A phenotype is the physical trait or feature of an organism that is the effect of a particular genotype. Flower color of snapdragons is one example of a phenotype, and the color is determined by which alleles comprise the genotype. Plants that are homozygous for the flower color alleles are either white or red. Heterozygous snapdragons are pink.
No, that would be more of a directional selection. Phenotypic change from a minor variant phenotype, black in this case, to the majority phenotype due to the environmental selection pressure of pollution on the moth phenotype.
Phenotype variation is slight variations in a phenotype that are caused by the expression of an organism's genes or the influence of environmental factors. A species can have several different phenotypes within it.