What is the name for parasitic viral DNA that has been integrated into the chromosome of its bacterial host?
A. prophage
B. prophase
C. viroid
D. virion
E. arbovirus
A. prophage
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Deep-diving animals accomplish their dives
through all of the following means EXCEPT by a. redirecting blood flow. b. conserving energy by gliding rather than swimming. c. relying primarily on anaerobic respiration during deep dives. d. binding oxygen to myoglobin and hemoglobin. e. assuring that the brain has an uninterrupted supply of
When blood pressure rises rapidly the body responds by ____
a. increasing heart rate
b. increasing muscle contractions around veins c. decreasing the diameter of arterioles d. vasodilation of arterioles e. increasing the movement of fluid into capillaries
Which of the following could result in the most serious type of mutation?
A. A nucleotide substitution in an exon. B. A nucleotide deletion in an exon. C. A nucleotide insertion in an intron. D. A nucleotide substitution in an intron. E. More than one of these would be most serious.
Which of the following statements is typically false?
A) DNA is double stranded, whereas RNA is single stranded. B) DNA contains the same nucleotides as RNA. C) DNA to RNA is called transcription. D) RNA to protein is called translation.