Exam 18: Genetics of Behavior

_____________________ can be defined as compulsive and repetitive behavior which can lead to impairment.

Individuals with a genetic variant in the promoter region of the MAOA gene display violent behavior,independent of environmental factors.

Individuals homozygous for the APOE*4 Apolipoprotein E allele are ten to fifteen times more likely to develop _____________________.

The observation that schizophrenia is associated with duplications of a certain copy number variant (CNV),while autism spectrum disorders are associated with deletions of the same CNV,suggests that _____.

The neurotransmitter _____________________ functions in the areas of the brain associated with mood,attention,arousal and memory,and is associated with nicotine addiction.

_____________________develops from physiological adaptations that change brain function when exposed to certain environmental triggers.

_____________________ is defined as the interaction of two or more gene variants to produce a certain phenotype.

Alzheimer disease has two forms: the early onset _____________________ form with a strong pattern of familial inheritance,and the late onset _____________________ form.

Researchers have found that schizophrenia may be caused by multiple genes,each contributing equally to the behavioral phenotype. This is an example of _____.

As the average age of the population increases,the incidence of Alzheimer's disease is also expected to increase.

The problem with defining abnormal behavior is that ____.

If a psychiatric condition displays 15% concordance in monozygotic twins,and 8% concordance in dizygotic twins,then genetics plays a major role in this trait.

When a nerve impulse travels from neuron 1 to neuron 2,neuron 1 is known as the _____.

Do you think that nonsubstance-related addictions,such as compulsive gambling or compulsive eating,have a greater genetic or environmental component compared to substance-related additions,such as nicotine?  Explain your reasoning.

It is clear from current research on human behavior genetics that _____.

The only gene that has been positively identified with the onset of Alzheimer disease encodes a protein that _____.

Transgenic mice carrying a mutant human SOD1 gene are used as models to study _____________________.

Discuss the tools used to see if human behavior has a genetic component,and give two examples of either normal or abnormal behavior that appears to have a genetic component.

A mutation in the MAOA gene is associated with ____ behavior.

The finding that mutations in synapse genes are associated with many genetic disorders that have a behavioral component suggests that _____.