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19 Cards in this Set
- Front
- Back
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Developmental psychology
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Branch of psychology that studies physical, cognitive, and social change throughout the life span.
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Chromosomes
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Threadlike structures made of DNA molecules that contain the genes.
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DNA (deoxyribonucleic acid)
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A molecule containing the genetic information that makes up the chromosomes.
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genes
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The biochemical units of heredity that make up the chromosomes; segments of DNA.
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Heredity
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The genetic transfer of characteristics from parents to offspring.
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Genome
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The complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes
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Environment
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Every external influence, from prenatal nutrition to social support in later life
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Interaction
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The interplay that occurs when the effect of one factor such as environment depends on another factor such as heredity
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Three major issues of developmental psychology
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Nature and nurture: continuity and stages: stability and change
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Prenatal development
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Zygote: embryo: fetus
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Zygote
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Conception to 2 weeks
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Embryo
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2 weeks through 8 weeks
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Fetus
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9 weeks to birth
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Epigenetics
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The study of environmental influences on gene expression that occur without a DNA change
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Identical twins( monozygotic twins)
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twins who developed from a single fertilized egg that splits in two, creating two genetically identical siblings
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Fraternal twins (dizygotic twins)
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Twins who develop from separate fertilized eggs. They are genetically no closer then non twin brothers and sisters but they share a prenatal environment
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teratogens
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An agent, such as a chemical or virus, that can reach the embryo or fetus during prenatal development and cause harm
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Fetal alcohol syndrome (fas)
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Mental and physical abnormalities in children caused by a pregnant woman's heavy drinking. In severe cases, signs include a small, out of proportion head and abnormal facial features
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Reflex
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A simple, automatic response to a sensory stimulus
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