PSYC 2500 Lecture Notes - Lecture 2: Twin Study, Genetic Counseling, Behavioural Genetics
18 Dec 2017
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How are they inherited: the terms dominant and recessive describe the inheritance patterns of certain traits. For a recessive allele to produce a recessive phenotype, the individual must have two copies, one from each parent. An individual with one dominant and one recessive allele for a gene will have the dominant phenotype: the two copies, called alleles, can be slightly different from each other. An individual with one dominant and one recessive allele for a gene will have the dominant phenotype. They are generally considered carriers of the recessive allele: the recessive allele is there, but the recessive phenotype is not. 2. 2 question: how do heredity and environment work together to influence child development, all traits depend on both genetic and environmental factors. Heredity and environment interact to produce their effects. This means that the genes act depends on environment in which they act. In the same way, the effects of environment depend on the genes with which they work.
