Genotype & Phenotype (OCR A-Level Psychology): Flashcards
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Genotype definition
Genotype definition
Genetic makeup giving potential for traits
Phenotype definition
Phenotype definition
Actual expressed traits affected by environment
MZ twins characteristics
MZ twins characteristics
Identical, monozygotic, share exact same genetic makeup
DZ twins characteristics
DZ twins characteristics
Non-identical, dizygotic, share 50% genetic material
What do family studies investigate?
What do family studies investigate?
Family history of trait (e.g., intelligence, depression)
Family studies limitation
Family studies limitation
Shared environment not genes, or vicarious reinforcement
What do twin studies look for?
What do twin studies look for?
Concordance rate, especially higher in MZ twins
Adoption studies: biological parent similarity means
Adoption studies: biological parent similarity means
Genetic influence
Adoption studies: adoptive parent similarity means
Adoption studies: adoptive parent similarity means
Social/environmental influence
Selective placement problem
Selective placement problem
Children placed in families similar to biological parents
Concordance rate definition
Concordance rate definition
Probability both twins have trait if one does
MZ abbreviation meaning
MZ abbreviation meaning
Monozygotic
DZ abbreviation meaning
DZ abbreviation meaning
Dizygotic
% genes shared by DZ twins
% genes shared by DZ twins
50%
Higher concordance expected in which twins?
Higher concordance expected in which twins?
MZ twins (monozygotic/identical)