BIO 133 EXAM 2 PSU QUESTIONS & ANSWERS
___________ traits are due to a single gene - Answer -mendelian
___________ is the idea that our genes determine who we are, but this is not correct -
Answer -genetic determinism
mendelian traits have an ___________ pattern of inheritance - Answer -either/or
___________ traits are influenced by the environment - Answer -multifactorial
___________ traits are due to the activity of more than one gene - Answer -polygenic
polygenic traits have a ___________ distribution of phenotypes - Answer -bell curve
___________ traits are phenotypes that vary in degree and can be attributed to
polygenic effects - Answer -quantitative
quantitative trait examples - Answer -height and skin color
QTLSs are a section of ___________ that correlates with variation in ___________ -
Answer -DNA, phenotype
___________ are predictions of recurrence based on traits - Answer -empiric risk
___________ is the rate the event occurs - Answer -incidence
___________ is the number of individuals who have the disorder - Answer -prevalence
___________ is the percentage of phenotypic variation due to genes - Answer -
heritability
if heritability = 1, then it is ___________ only - Answer -genes
if heritability = 0, then it is ___________ only - Answer -environment
___________ is the proportion of genes relatives share - Answer -correlation
coefficient
if the correlation coefficient is 100%, then they are ___________ twins - Answer -
monozygotic
___________ is the percentage of pairs where both twins express the trait - Answer -
concordance
___________ traits are due to a single gene - Answer -mendelian
___________ is the idea that our genes determine who we are, but this is not correct -
Answer -genetic determinism
mendelian traits have an ___________ pattern of inheritance - Answer -either/or
___________ traits are influenced by the environment - Answer -multifactorial
___________ traits are due to the activity of more than one gene - Answer -polygenic
polygenic traits have a ___________ distribution of phenotypes - Answer -bell curve
___________ traits are phenotypes that vary in degree and can be attributed to
polygenic effects - Answer -quantitative
quantitative trait examples - Answer -height and skin color
QTLSs are a section of ___________ that correlates with variation in ___________ -
Answer -DNA, phenotype
___________ are predictions of recurrence based on traits - Answer -empiric risk
___________ is the rate the event occurs - Answer -incidence
___________ is the number of individuals who have the disorder - Answer -prevalence
___________ is the percentage of phenotypic variation due to genes - Answer -
heritability
if heritability = 1, then it is ___________ only - Answer -genes
if heritability = 0, then it is ___________ only - Answer -environment
___________ is the proportion of genes relatives share - Answer -correlation
coefficient
if the correlation coefficient is 100%, then they are ___________ twins - Answer -
monozygotic
___________ is the percentage of pairs where both twins express the trait - Answer -
concordance
