Huntington disease is
A. a model of a multifactorial trait, controlled by several genes.
B. inherited as an X-linked dominant trait.
C. a disease with onset in early childhood.
D. one that produces no significant changes in brain cells.
E. a model of a single gene defect affecting behavior.
E
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a. calcium only b. antibodies only c. calcium and protein, but not antibodies d. sugar and calcium, but not protein e. calcium, antibodies, sugar, and protein
Which of the following is NOT true
concerning nectar? It is a. sucrose-rich. b. a dilute fluid. c. the only food for most butterflies. d. rich in vitamins and minerals. e. easy for pollinators to sip
Smooth muscles are found where and are what?
What will be an ideal response?
Hydrostatic pressure in plant cells that presses the plasma membrane firmly against the interior of the cell wall, making it rigid is.
What will be an ideal response?