In E. coli replication the enzyme primase is used to attach a 5 to 10 base ribonucleotide strand complementary to the parental DNA strand. The RNA strand serves as a starting point for the DNA polymerase that replicates the DNA
If a mutation occurred in the primase gene, which of the following would you expect? A) Replication would only occur on the leading strand.
B) Replication would only occur on the lagging strand.
C) Replication would not occur on either the leading or lagging strand.
D) Replication would not be affected as the enzyme primase in involved with RNA synthesis.
C
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Answer the following statement(s) true (T) or false (F)
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A. Nod factors B. Flavonoids C. Nodulins D. Leghemoglobin E. Bacteroids
Which of the following statements best describes common variable immunodeficiency?
A. Symptoms appear in infancy. B. It is inherited as an X-lmked recessive. C. It is invariably fatal for the patient. D. There is a deficiency of IgA, IgG, or both.
The formation of sieve plates between phloem sieve-tube elements allows
A) mesophyll cells to connect with xylem cells. B) adjacent cells to connect via membrane-lined pores. C) each cell to function independently. D) water to transpire from each surface. E) the dead phloem cells to form an empty tube.