What is currently used for DNA fingerprinting for law enforcement?
What will be an ideal response?
fingerprints
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If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?
I) The molecule is lipid soluble. II) The molecule is derived from a series of steps beginning with cholesterol. III) The molecule acts at a target tissue some distance from where it is produced. IV) The molecule uses a carrier protein when in an aqueous solution such as blood. A) only I and III B) only II and IV C) only I, III, and IV D) only II and III E) I, II, III, and IV
Which of the following is not true of transposons?
A. They are always part of plasmids. B. They can replace damaged DNA. C. They can change pigmentation. D. They can change the genome. E. They can transfer drug resistance.
The drug cytochalasin B blocks the function of actin. Which of the following aspects of the cell cycle would be most disrupted by cytochalasin B?
A) spindle formation B) spindle attachment to kinetochores C) cell elongation during anaphase D) cleavage furrow formation and cytokinesis
Sensory neurons carry impulses _____ the central nervous system, while motor neurons carry impulses _____ the central nervous system
away from; toward along; through toward; away from between; toward