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 _____.
a. CNV mutations are present in all psychiatric disorders
b. both disorders have identical phenotypes
c. both disorders have an environmental component
d. both disorders share common developmental pathways
e. neither disorder has a genetic component
d
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Which type of nutrient can pass across epithelial cells without any expenditure of ATP?
A. iron B. calcium C. protein D. fat E. magnesium
Which strand is the coding strand, and where is the N-terminal end of the resulting peptide located?
A) The top strand is the coding strand, and the N-terminus is on the right. B) The top strand is the coding strand, and the N-terminus is on the left. C) The bottom strand is the coding strand, and the N-terminus is on the right. D) The bottom strand is the coding strand, and the N-terminus is on the left. E) Not enough information is given.
A correct successional sequence is represented by
A. grasses ® mosses ® herbs ® trees ® shrubs. B. trees ® shrubs ® mosses ® herbs ® grasses. C. herbs ® grasses ® mosses ® shrubs ® trees. D. mosses ® herbs ® grasses ® shrubs ® trees.
An anion is formed when
A) an atom gains one or more negatively-charged electrons. B) an atom loses one or more positively-charged protons. C) an atom loses one or more negatively-charged electrons. D) an atom gains one or more positively-charged protons. E) an atom has an equal number of positively-charged protons and negatively-charged electrons.