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Unformatted text preview: r parents , only some of the genes are expressed Gene Expression:
Regulator genes largely control the
continuous switching on and off of genes that underlie development across the lifespan
-a given gene inﬂuences development and behavior only when its turned on 4 5/22/13 Gene Expression
About a third of human genes have two
or more different forms, known as alleles. is the form of the gene that is expressed if present The dominant allele The recessive allele A person who inherits two of the same alleles A person who inherits two different alleles is not expressed if a dominant allele is present
for a trait is described as homozygous for a trait is described as heterozygous Polygenic Inheritance
When traits are governed by more than
one gene -applies to most traits and behaviors of interest to behavioral scientists Relation 3: Child’s
Environment and Phenotype
As the model indicates, the child’s
observable characteristics result from the
interaction of enviro...
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This note was uploaded on 01/21/2014 for the course PSYCH 302 taught by Professor Whitneyweikum during the Fall '13 term at University of British Columbia.
- Fall '13