Mac 6: End Flashcards
Which of the following is true for Behavioral Genetics?
- Considers nervous system function and variation, including hard-to-define qualities of the mind
- Analyzing behavior is hard because symptoms of different syndromes overlap
- Huge possibility of biased information of the patient’s case may make release of final diagnosis longer than intended
- All of the above
-All of the above.
Empiric risk is defined as?
- Is loosely based from prevalence rate in a specific population
- Is a population statistic based solely on observation
- Focuses on the genetic component of trait variation
- All of the above
-Is a population statistic based solely on observation.
Polygenic inheritance are caused as a result of environmental factors and gene mutations. An example of this kind of disorder is:
- Albinism
- Sickle Cell Anemia
- Down Syndrome
- Alzheimer’s disease
-Alzheimer’s disease
Which of the following statements describe true for dermatoglyphics?
- Otherwise known as “skin writing”
- A tool that examines fingerprints and measures the total ridge count
- Down syndrome can be detected through this too
- All of the above
-All of the above
How do genes affect skin color?
- By the number of melanocytes
- By the difference in number of melanosomes
- By the size and density of pigment distribution
- B & C only
-B & C only
It is the interaction between genes that influences a phenotype, and it is when one gene really depends on another gene for it to be expressed.
- Epistasis
- Incomplete dominance
- Codominance
- Polygenic Trait
-Epistasis
One of the following is the likely cause of major depressive disorders, which is it?
- Decreased levels of serotonin and norepinephrine
- Increased levels of dopamine and serotonin
- Decreased levels of dopamine, melatonin and epinephrine
- Increased levels of epinephrine and serotonin
-Decreased levels of serotonin and norepinephrine
It is a behavioral disorder that has a wide spectrum ranging from the classical form to milder forms wherein loss of language, communication and social skills begin in early childhood.
- Major Depressive Disorder
- Autism
- Schizophrenia
- Bipolar Disorder
-Autism
Which statement/s is true or false
Coefficient of relatedness is the proportion of genes shared by two people related in a particular way.
Heritability is the risk of recurrence of a trait or illness based on known incidence in a certain population.
-First statement is TRUE; Second statement is FALSE.
Which of the following statements describe true for multifactorial inheritance?
- Risk of having the disease is higher if your first cousin has the trait than your siblings
- Otherwise known as Mendelian or monogenic inheritance
- A combination of genes from both parents plus environmental influence make the condition.
- All of the above
-A combination of genes from both parents plus environmental influence make the condition.
Mendelian disorders occur due to mutations in a single gene and can be easily detected by pedigree analysis. An example of a Mendelian disorder is?
- Obesity
- Sickle Cell Anemia
- Hypertension
- Alzheimer’s disease
-Sickle cell anemia
Which of the following statements describe true for concordance?
- Rate of the probability that two people with develop the same disease
- Percentage of pairs in which both twins express the trait in whom at least one has the trait
- Monozygotic twins have higher concordance rate than dizygotic twins
- All of the above
-All of the above.
It controls whether the body stores or uses fat.
- Neuropeptide Y
- Leptin
- PYY
- Stearoyl-CoA desaturase-1
-Stearoyl-CoA desaturase-1
Which statement/s is true or false
Concordance is the percentage of twin pairs in which both twins express a trait.
For a trait largely determined by genes, concordance is higher for monozygotic than dizygotic twins.
-Both statements are TRUE.
Which of the following pairs of risk factors for cardiovascular disease are mismatched?
- Absence of enzymes = uncontrollable risk factor
- Smoking habits = controllable risk factor
- Leukocyte adhesion defects = uncontrollable risk factor
- Age = controllable risk factor
-Age = controllable risk factor
