Data from more than 45 family and twin studies spanning seven decades of research point to the following fact about the inheritability of schizophrenia:
A) Schizophrenia inheritability has been found to have very little genetic basis.
B) A person whose twin has schizophrenia has a 40% chance of having the disease.
C) The risk of inheriting schizophrenia to relatives of someone who has the disorder is less than the risk to relatives of normal controls.
D) Schizophrenia is known to be inherited through behavioral family pathology, not through genetic means.
Ans: B
The risk of inheriting schizophrenia is 10% to 20% in those who have one immediate family member with the disease and approximately 40% if the disease affects both parents or an identical twin.
You might also like to view...
According to the U. S. Department of Commerce, which of the following rules must be followed by makers of toy guns?
a. Darts from toy guns must be made of materials that will not penetrate skin. b. Toy guns cannot contain parts made of lead or lead-based paint. c. Reflective paint must be used on toy guns. d. Toy guns must be distinguishable from real guns.
Type I errors are more likely to occur when the level of significance is less than:
a. 0.05. b. 0.01. c. 0.001. d. 0.0001.
The nurse is providing education to a client prescribed with intranasal cromolyn. Which statement will the nurse include in the client teaching about this medication?
A) "This medication increases your antibodies to the offending allergens." B) "It's best to use this medication when your symptoms are not tolerable." C) "Do not use this medication for more than a week at a time." D) "This medication stabilizes your cells in an effort to fight the offending allergens."
Select normal findings for the thyroid gland
1. two smooth lobes palpable on either side of the trachea 2. right lobe larger than the left 3. no movement when the client swallows 4. irregular surface