Multifactorial Traits 1 Can a polygenic trait also be multifactorial? A B 2 Genes and the environment mold most traits. A B 3 True False Genetic contributions become more prominent with age. A B 8 Narcolepsy Cataplexy MDD (major depressive disorder) Schizophrenia Anorexia Environment has the greatest influence on IQ. A B 7 10 100 1000 10,000 _____________has the highest death rate of any psychiatric disorder. A B C D E 6 Heart Health Body Weight Height Fingerprints Eye Color Skin color Hair Color All of the above 1 in ______individuals are affected by behavioral disorders. A B C D 5 True False _________________is/are multifactorial traits. A B C D E F G H 4 Yes No True False Dependance is the need to take more drugs to achieve the same effects. A B True False 5/12/2011 2:46:00 PM Page 1 Multifactorial Traits 9 Studying___________________is a method used to study multifactorial traits that isolates the influence of a similar environment A B C D E 10 Studying___________________is a method used to study multifactorial traits that isolates the influence of similar genes. A B C D E 11 Adopted individuals Twins Association Studies Empiric Risk Heritability Studying___________________is a method used to study multifactorial traits by looking at the population and predicting recurrence. A B C D E 14 Adopted individuals Twins Association Studies Empiric Risk Heritability Studying___________________is a method used to study multifactorial traits by comparing what phenotype a population has to the phenotype that is expected. A B C D E 13 Adopted individuals Twins Association Studies Empiric Risk Heritability ___________________show traits that may be linked by looking at the genes. A B C D E 12 Adopted individuals Twins Association Studies Empiric Risk Heritability Adopted individuals Twins Association Studies Empiric Risk Heritability When geneticists witness a bell-shaped curve while plotting the frequency for a phenotypic class, they know the trait is polygenic. A B True False 5/12/2011 2:46:00 PM Page 2 Multifactorial Traits 15 Fingerprints can be affected while the fetus is still in the womb. A B 16 _______________is/are proven risk factors for addiction. A B C D E 17 True False Drug users develop a tolerance because the number of dopamine receptors is reduced by constant introduction of a drug to their system. A B 22 motor function and memory memory and behavior motor function and behavior sensation and vision The synapse is the center of the neuron where all the neurotransmitters interact and send signals. A B 21 True False The reward pathway connects which 2 parts of the brain? A B C D 20 True False Genetic studies have shown a link between genes and nicotine addiction as well as ADHD. A B 19 ADHD Depression Peers Tendency toward "risky" behavior All of the above Genetics affect addiction by coding for different receptors which alter affects of drugs. A B 18 True False True False A______________is caused by one gene and environmental influences. A B C D Mendelian Multifactorial Trait Polygenic Multifactorial Trait neither a or b both a and b 5/12/2011 2:46:00 PM Page 3 Multifactorial Traits 23 A______________is caused by more than one gene and environmental influences. A B C D 24 Which of the following has a greater heritability? A B C D 25 Mendelian Multifactorial Trait Polygenic Multifactorial Trait neither a or b both a and b Eye Color Height Fingerprints Skin Color ____________________is a protein that is secreted by fat cells when eating that suppresses appetite and increases metabolism. A B C D Neuropeptide Y Melanocortin 4 receptor apolipoprotein Leptin 5/12/2011 2:46:00 PM Page 4