The enzyme that catalyzes the addition of new nucleotides to a growing DNA strand is

A. DNA polymerase.
B. helicase.
C. topoisomerase II.
D. DNA ligase.
E. DNA replicase.


A

Biology & Microbiology

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How many unique mRNA codons can be constructed from the four different RNA nucleotides?  

A.  four B.  12 C.  16 D.  61 E.  64

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Which of the following is unique to prokaryotes?

a. chemoautotroph b. chemoheterotroph c. photoautotroph d. photoheterotroph e. chemoautotroph and photoheterotroph

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You have discovered a fungus that has septate hyphae and is partnered with a photosynthetic cell

What type of fungus is it? What will be an ideal response?

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Transcription factor proteins contain regions called ______ that have specific functions

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology