Ch16
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15 Terms
Most traits are not due to __________ genes.
single
Complex traits are due to __________ genes.
multiple
Traits that vary continuously from value X to Y are considered __________ traits.
quantitative
Latest DNA analysis suggests about __________ genes are involved in complex traits.
700
Insufficient nutrition is an example of an __________ risk factor.
environmental
In genotype-by-environment interactions, mice fed a high-fat diet weigh more due to __________.
environment
Heritability refers to the variation in a population due to __________.
genes
Identical twins share __________ genes because they originate from one fertilized oocyte.
the same
If identical twins show more similarity than fraternal twins, it may suggest the influence of __________.
genes
Concordance measures how often __________ are the same between twins.
twins
High heritability in autism spectrum disorder ranges from __________ to __________ percent.
64-91
About __________ percent of birth anomalies are considered complex traits.
70
__________ twins share approximately 50% of their genes.
Fraternal
The study of heritability is easiest with __________ studies.
twin
The amount of nitrogen enrichment affects the yield of __________ strains of corn.
corn
Flashcards (20)