Which of the following is the BEST example of a finding from genetic linkage and molecular biology studies?
A) The brains of those with schizophrenia are structured differently from the brains of those without schizophrenia.
B) Those with schizophrenia process certain neurotransmitters differently from those without schizophrenia.
C) Gene defects on certain chromosomes predispose one to schizophrenia.
D) Biological relatives of those with schizophrenia are at greatest risk for schizophrenia.
Answer: C) Gene defects on certain chromosomes predispose one to schizophrenia.
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In men, when blood levels of testosterone rise
A) the pituitary gland secretes LH. B) the hypothalamus secretes LH. C) the pituitary gland stops secreting LH. D) the hypothalamus starts secreting LH-RH.
Which chromosome pattern is most common for a male?
a. XX b. XY c. YY d. XO