Chapter 3- Developing Through the life span Flashcards
Branch of psychology that studies physical, cognitive, and social change throughout the life span
developmental psychology
threadlike structures made of DNA molecules that contain the genes
chromosomes
a molecule containing the genetic information that makes up the chromosomes
DNA (deoxyribonucleic acid)
the biochemical units of heredity that make up the chromosomes; segments of DNA
genes
the genetic transfer of characteristics from parents to offspring
heredity
the complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes
genome
every external influence, from prenatal nutrition to social support in later life
environment
the interplay that occurs when the effect of one factor (such as environment) depends on another factor (such as heredity)
interaction
the study of environmental influences on gene expression that occur without DNA change
epigenetics
the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo
zygote
the developing human organism from about 2-weeks after fertilization through the second month
embryo
twins who develop from a single fertilized egg that splits in two, creating two genetically identical siblings
identical twins (monozygotic twins
twins who develop from separate fertilized eggs. they are genetically no closer than non-twin brothers and sisters, but they share a prenatal environment
fraternal twins (dizygotic twins)
the developing human organism from 9 weeks after conception to birth
fetus
an agent, such as a chemical or virus, that can reach the embryo or fetus during prenatal development and cause harm
teratogen
physical and mental 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
fetal alcohol syndrome (FAS)
a simple, automatic response to a sensory stimulus
reflex