Which of the following adds new nucleotides to a growing DNA chain?
a. DNA polymerase
b. DNA helicase
c. RNA primer
d. primase
e. RNA polymerase
a
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What is the best way to describe our current understanding of the one-gene/one-polypeptide hypothesis?
A. It continues to be an accurate description of how genes work. B. It is oversimplified, especially in eukaryotes. C. It has been replaced by the more accurate “one-gene/one-enzyme” hypothesis. D. It was true for fungi like Neurospora, but not for other species.
True or false: interactions between organisms lead to the evolution of particular traits in those organisms
A. true B. false
What is the number of chromosomes in a human tetraploid cell? ____________________ Fill in the blank(s) with the appropriate word(s)
A (colony/habitat/biofilm) is a mixed population of microbes growing together on surfaces.
Fill in the blank(s) with the appropriate word(s).