Although no specific gene alteration has yet been demonstrated as a cause for schizophrenia (SZ), it is known to have a strong genetic component
A recent study has found a strong association between SZ and a locus at chromosome 10q22-23 in Ashkenazi Jewish and Taiwanese Han populations. Which of the following is probable? A) Other populations will have the same association with 10q22-23.
B) The neuregulin-3 gene at this locus is mutated in all or most SZ cases.
C) SZ exhibits significant genetic heterogeneity in different populations.
D) The region on 10q must include several genes associated with SZ.
E) People with SZ being characterized differently in various medical communities results in this association between the Jewish and Han populations.
C
You might also like to view...
Which statement represents the biological characteristics that kittens, oak trees, swans, earth worms, elephants and crickets have in common?
A. DNA nucleotides form the basis of inherited life, with cells that are formed spontaneously from the environment. B. DNA nucleotides form the basis of all inherited life, with cells that are formed from other cells. C. RNA nucleotides form the basis of all inherited life, with cells that are formed from other cells. D. RNA nucleotides form the basis of inherited life, with cells that are formed spontaneously from the environment.
The first line of plant defense against pathogen infection is(are) the:
A. cuticle. B. plasmodesmata. C. stomata. D. pathogens. E. cell walls.
Systematists often use DNA sequencing in ______________, the study of the order of evolutionary events within a group sharing derived characters.
Fill in the blank(s) with the appropriate word(s).
Carbon monoxide can be released by brain cells and stimulates
a. adenylate cyclase and blood vessel contraction. b. guanylate cyclase and blood vessel dilation. c. NO-synthase and muscle cell contraction. d. cyclooxygenase and prostaglandin synthesis.