A common motif in proteins that bind DNA in Bacteria is the

a. catalytic triad.
b. double helix.
c. helix-turn-helix.
d. turn-helix-turn.


Answer: C

Biology & Microbiology

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The amount of new mutations in living organisms following a round of genome replication:

A. generally increases with larger genomes. B. generally decreases with larger genomes. C. is similar independent of genome size. D. is highest in the bacteria. E. None of the answer options is correct.

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In the simplified prairie food chain illustrated by the pictures below, the letter C represents a ____

a. tertiary consumer b. secondary consumers c. first trophic level d. primary consumers e. third trophic level

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Ligase enzymes are used to covalently bind together pieces of DNA

Indicate whether the statement is true or false

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There are some forms of life on Earth that can survive without water

Indicate whether the statement is true or false

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