Which of the following removes the RNA nucleotides from the primer and adds equivalent DNA nucleotides to the 3' end of Okazaki fragments?
A) helicase
B) DNA polymerase III
C) ligase
D) DNA polymerase I
E) primase
Ans: D) DNA polymerase I
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Which of the following types of plants would not yet have been evolved in the forests that became coal deposits?
A) horsetails B) lycophytes C) pine trees D) tree ferns E) whisk ferns
Beginning with a newly formed daughter cell, what is the order of the other stages of the eukaryotic cell cycle?
A) G1, S, G2, mitosis B) Mitosis, G1, G2, S C) G1, G2, mitosis, S D) Mitosis, S, G1, G2
ALL of these respiratory pathogens require person-to-person propagation EXCEPT
a. Legionella pneumophila. b. Streptococcus spp. c. influenza virus. d. both Streptococcus spp. and influenza virus.