The point at which DNA synthesis is initiated is called the:
A. origin of replication.
B. primer.
C. primase.
D. start codon.
E. replication fork.
A
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Nitrogen-containing bases between two complementary DNA strands are joined by
(a) polar covalent bonds. (b) hydrogen bonds. (c) phosphate groups. (d) deoxyribose sugars.
In an individual pea plant, the seeds are yellow and wrinkled. These attributes are the plant's ________.
Fill in the blank(s) with the appropriate word(s).
The lacP site within the lac operon is upstream of the genes that encode for lactose uptake and metabolism proteins. The lacP site is
A. the lac promoter site. B. where RNA polymerase binds. C. the site where genes are transcribed that encode proteins for metabolizing lactose. D. the lac promoter site where RNA polymerase binds. E. the lac promoter site, where genes are transcribed that encode proteins for metabolizing lactose.
Plasmodium is
a. an apicomplexan. b. a diatom. c. a ciliate. d. a dinoflagellate. e. a flagellated protozoan