BIOS 1700 Chapter 18 Test Questions
and Answers.
One hope of personalized medicine is that:
physicians will be able to use an individual's genotype to avoid harmful side-effects of some
medications.
physicians will be able to use an individual's lifestyle factors to moderate harmful side-effects of
medication.
it will lead to medications with fewer side-effects.
individuals will receive preventative medications for diseases they have not yet contracted.
physicians will be able to use an individual's lifestyle factors to identify preventative medicines
that have minimal side-effects. - Answer physicians will be able to use an individual’s
genotype to avoid harmful side-effects of some medications
_____ is defined as the percentage of cases in which both members of a pair of twins show the
trait when it is known that at least one member shows it.
Concordance
Accordance
Epistasis
Discordance
Monozygocity - Answer concordance
Complex traits are often called _____ because they _____.
environmental; are influenced by the environment as well as by genes
quantitative; can be measured
qualitative; come in one of several discrete (distinct) forms
epistatic; are influenced by many genes
external; are influenced by the environment as well as by genes - Answer quantitative; can
be measured
If genetic contribution to variation in a trait is negligible:
identical twins will be more similar to one another than fraternal twins are to one another.
, fraternal twins will be more similar to one another than identical twins are to one another.
None of the answer options is correct.
identical twins will be no more similar to one another than are fraternal twins.
identical twins will be resemble one another more closely than do any other siblings. - Answer
identical twins will be no more similar to one another than are fraternal twins
Personalized medicine refers to the idea of:
using a patient's individual genotype to inform treatment for a given disease.
basing treatment on an individual's long-term medical history.
using a patient's individual lifestyle and other risk factors to inform treatment for a given
disease.
using a combination of a patient's lifestyle, genotype, and long-term medical history to inform
treatment for a given disease.
using a combination of a patient's lifestyle and genotype to inform treatment for a given
disease. - Answer using a patients individual genotype to inform treatment for a given
disease
Nilsson-Ehle's studies of seed color in wheat were important because they showed that:
inbred strains can be used to study the environmental component of complex traits.
complex traits have a large environmental component.
complex traits both have a large environmental component and are subject to Mendelian laws
of inheritance.
complex traits are not subject to Mendelian laws of inheritance.
complex traits are subject to Mendelian laws of inheritance. - Answer complex traits are
subject to Mendelian laws of inheritance
BRCA1 and BRCA2 are:
genes known to cause cancer.
genes related to DNA repair.
genes related to DNA synthesis.
proteins necessary for normal breast cell division.
proteins necessary for tumor suppression. - Answer genes related to DNA repair
In general, the phenotypes of a complex trait should exhibit a(n) _____ distribution.
and Answers.
One hope of personalized medicine is that:
physicians will be able to use an individual's genotype to avoid harmful side-effects of some
medications.
physicians will be able to use an individual's lifestyle factors to moderate harmful side-effects of
medication.
it will lead to medications with fewer side-effects.
individuals will receive preventative medications for diseases they have not yet contracted.
physicians will be able to use an individual's lifestyle factors to identify preventative medicines
that have minimal side-effects. - Answer physicians will be able to use an individual’s
genotype to avoid harmful side-effects of some medications
_____ is defined as the percentage of cases in which both members of a pair of twins show the
trait when it is known that at least one member shows it.
Concordance
Accordance
Epistasis
Discordance
Monozygocity - Answer concordance
Complex traits are often called _____ because they _____.
environmental; are influenced by the environment as well as by genes
quantitative; can be measured
qualitative; come in one of several discrete (distinct) forms
epistatic; are influenced by many genes
external; are influenced by the environment as well as by genes - Answer quantitative; can
be measured
If genetic contribution to variation in a trait is negligible:
identical twins will be more similar to one another than fraternal twins are to one another.
, fraternal twins will be more similar to one another than identical twins are to one another.
None of the answer options is correct.
identical twins will be no more similar to one another than are fraternal twins.
identical twins will be resemble one another more closely than do any other siblings. - Answer
identical twins will be no more similar to one another than are fraternal twins
Personalized medicine refers to the idea of:
using a patient's individual genotype to inform treatment for a given disease.
basing treatment on an individual's long-term medical history.
using a patient's individual lifestyle and other risk factors to inform treatment for a given
disease.
using a combination of a patient's lifestyle, genotype, and long-term medical history to inform
treatment for a given disease.
using a combination of a patient's lifestyle and genotype to inform treatment for a given
disease. - Answer using a patients individual genotype to inform treatment for a given
disease
Nilsson-Ehle's studies of seed color in wheat were important because they showed that:
inbred strains can be used to study the environmental component of complex traits.
complex traits have a large environmental component.
complex traits both have a large environmental component and are subject to Mendelian laws
of inheritance.
complex traits are not subject to Mendelian laws of inheritance.
complex traits are subject to Mendelian laws of inheritance. - Answer complex traits are
subject to Mendelian laws of inheritance
BRCA1 and BRCA2 are:
genes known to cause cancer.
genes related to DNA repair.
genes related to DNA synthesis.
proteins necessary for normal breast cell division.
proteins necessary for tumor suppression. - Answer genes related to DNA repair
In general, the phenotypes of a complex trait should exhibit a(n) _____ distribution.
