Approximately how many genes comprise the human exome?
A) 20 million
B) 200,000
C) 2,000
D) 20,000
D) 20,000
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A modification that occurs to a nuclear gene that alters gene expression, but not permanently, is called _______ inheritance
A. extranuclear B. cytoplasmic C. maternal effect D. epigenetic E. nuclear
Nondisjunction of a single pair of autosomes can lead to all of the following except
A. euploidy. B. aneuploidy. C. trisomy. D. monosomy.
Immunological attack on the islets of Langerhans resulting in the inability to produce insulin leads to type (I/II/IV) diabetes Mellitus
What will be an ideal response?
Which of the following elements of the sliding-filament model of muscle contraction is incorrectly defined?
a) tropomyosin—a regulatory protein b) troponin complex—a set of additional regulatory proteins c) transverse tubules—infoldings of the plasma membrane d) sarcoplasmic reticulum—a specialized endoplasmic reticulum e) calcium ions—ions bound to the myosin protein that play a role in muscle contraction and relaxation