Given the structure below, please answer the following questions
Is the accompanying figure DNA or RNA? ________ Is the arrow closest to the 5' or 3' end? ________ Spleen diesterase is an enzyme that breaks the covalent bond that connects the phosphate to the 5' carbon. Assume that the dinucleotide is digested with spleen diesterase. To which base and to which carbon on the sugar is the phosphate now attached, A or T?
A) DNA; 3' end; T, 5'
B) DNA; 5' end; A, 5'
C) RNA; 3' end; A, 3'
D) RNA; 3' end; T, 3'
E) DNA; 3' end; A, 3'
E
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Birds are different from all other living vertebrates because they:
A. can fly B. lack teeth C. have feathers D. are bipedal E. All of the choices provided are correct
Which antimicrobial regimen should be administered to a patient suspected of having endocardi-tis as a result of infection with C. hominis?
a. Chloramphenicol and tetracycline b. Erythromycin and ciprofloxacin c. Ampicillin and ceftriaxone d. Penicillin, with or without an aminogly-coside agent
X inactivation is controlled by
A) the SRY gene. B) the XIST gene. C) the XTASY gene. D) the location of the spindle in mitosis.
How do most mutations affect an organism?
A) Most mutations create cancerous cells. B) Most mutations either are harmful, or they have no effect. C) Most mutations are beneficial and create a more adapted organism. D) Most mutations will kill the organism.