A drug produced using recombinant DNA technology that is used illegally by athletes is
A) insulin.
B) streptokinase.
C) tissue plasminogen activator.
D) erythropoietin.
D) erythropoietin.
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Which statement correctly interprets the graph?
A. Paramecium caudatum drives Paramecium aurelia to near extinction.
B. Paramecium aurelia drives Paramecium caudatum to near extinction.
C. Paramecium caudatum and Paramecium aurelia are able to compete for the same resource and their population densities are not affected.
D. Paramecium caudatum and Paramecium aurelia are unable to exist and both populations go extinct after 24 days.
What is the difference between an atom and an element?
Which of these is paired incorrectly?
(a) prometaphase - the kinetochores become attached to spindle fibers (b) anaphase - daughter chromosomes migrate toward spindle poles (c) prophase - the nucleolus disappears and the nuclear envelope disintegrates (d) metphase - the chromosomes are aligned in the metaphase plate (e) telophase - a resting phase between cell division cycles
In contrast to a eukaryotic chromosome, a prokaryotic chromosome
(a) is shorter and fatter (b) has a single loop of DNA (c) never replicates (d) contains many histones (e) all of these are correct