When making a complementary DNA (cDNA) library, which enzyme is used to copy mRNA into DNA?
A) DNA ligase
B) DNA polymerase
C) Primase
D) RNA polymerase
E) Reverse transcriptase
E
Biology & Microbiology
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Immunological tests may determine the presence of
A. only antibody. B. only antigen. C. antigen or antibody. D. neither antibody nor antigen.
Biology & Microbiology
In higher plants, thylakoids are arranged into stacks called ____
a. stroma b. stomata c. photosystems d. grana e. stromal lamellae
Biology & Microbiology
El Niño is a recurring weather phenomenon that
a. increases global warming. b. stabilizes world climates. c. produces a fluctuation in global climates. d. depletes the ozone layer. e. increases oceanic productivity.
Biology & Microbiology
Which of the following is not a species within the genus Homo?
A. Homo habilis B. Homo sapiens C. Homo erectus D. Homo ramidus E. Homo floresiensis
Biology & Microbiology