Adding nucleotides onto a growing DNA strand during DNA replication in cells occurs in
a. the 5' ? 3' direction for the leading strand and the 3' ? (äw 5' direction on the lagging strand.
b. either the 5' ? 3' direction or the 3' ? 5' direction on both strands, depending on where
replication begins.
c. the 5' ? 3' direction only.
d. the 3' ? 5' direction for the leading strand and the 5' ? 3' direction on the lagging strand.
e. the 3' ? 5' direction only.
C
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The land plants are termed viridaeplantae
Indicate whether the statement is true or false.
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a. deaths b. births c. mitigation d. emigration e. immigration
A tracer is a substance with what attached to it?
a. water b. carbon c. a radioisotope d. an ion e. a positron