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Many of a person's characteristics are determined by an interaction between genes and the environment. You're welcome...
Genes are the sections of DNA that code for a functional product, such as a protein. They interact with an organism's environment to produce traits.
True :) (PAcyber student)
Nature vs Nurture
Evolution is the effect caused by the interaction of organisms and their environment, organisms and other organisms, organisms and their genes, and so on. The simplest answer to this question is that organisms produce and propagate replications of the alleles they carry: they reproduce.
genes and the environment
Most physical features are a result of the interaction between genes and the environment, i.e., phenotype is a product of both genetics and the environment.
Genotype is the alleles (different forms of a gene) which an individual has with respect to a particular characteristic. The Phenotype is how these genes are expressed in an individual.
influence the expression of certain genes
Natural selection acts on the way organisms interact with one another and with their environment. The genes of organisms are not usually themselves involved in this interaction: they direct it through intermediaries such as proteins. So natural selection must work through these intermediaries to affect genes.
These are polygenic (which literally means "several genes").
Genes produce proteins and what we are is determined by genes.