chapter 2
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| Genes | carry instructions to make body function; most basic unit
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| DNA | chemicals substance makes up genes
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| Chromosomes | store and transmit genetic into (46, 23 pairs)
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| Conception | sperm and ovum intie to form zygotes
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| Zygote | single cell organisms containing 46/23 chrmomsomes
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| Allele | 2 forms of the same gene
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| Homozygous | 2 alleles are alike; both parents have blond hair
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| Dominant-recessive inheritance | one of the allele effects the child
-Genetic disorders if both parents have gene children are more likely to
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| Incomplete dominance | both alleles have a single gene- results in combined trait
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| Polygenetic inheritance | many genes combine to influence traits
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| Genomic imprinting | chemical marker activates father or mother genes; normally temporary
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| Mutation | sudden permanent change in DNA segment during birth; cancer etc.
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| Chromosomal abnormities | different number of chromosomes or a structural abnormality in one or more chromosomes;
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| causes down syndrome | extra 21st chromosome
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| causes sex chromosomes abnormalities | problem with X and Y chromosomes
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| reproductive choices | genetic counseling- helps couples, testing- trends, adoption
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| reproductive technology | donor insemination, surrogate mom
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| prenatal diagnostic method | amniocentesis, ultra sound, blood analysis
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| environment context for development | family, poverty, neighborhood, culture
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| socioeconomic status | social status
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| Collectivist | people are a part of a group; group goal over individual
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| Heredity | estimates proportion of individual differences take part of genetics
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| Kinship study | study extended family to see traits
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| Passive correlation | parents provide environment based on heredity
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| Evocative correlation | children influence environment
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| Niche picking | pick places where particular genetic tendencies do best; avoid places that conflict with and do not support their tendencies
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| Epigenists | deviation resulting from on going directional changes
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| Age of viability | 22-26 weeks
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Or sort by any of the columns using the down arrow next to any column heading.
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