Most of the enzymes that catalyze the biochemical reactions involving amino acids recognize the L

stereoisomer.



Indicate whether the statement is true or false.


T

Biology & Microbiology

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A DNA molecule used to carry a foreign gene into a host organism is called a

A. plasmid. B. probe. C. vector. D. blot.

Biology & Microbiology

This curve most likely represents a graph of enzyme activity

a. as a function of temperature. b. as a function of pH in a strongly acidic environment. c. as a function of pH in a strongly basic environment. d. as a function of pH in a fairly neutral environment. e. as a function of temperature and pH combined.

Biology & Microbiology

__________ is a field of study concerned with the

origins, evolution, and persistence of life on Earth as it relates to life in the universe. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The methanogenic archaeans are __________ that

pull electrons from __________. a. chemoautotrophs; oxygen b. chemoheterotrophs; carbon dioxide c. chemoautotrophs; water d. chemoheterotrophs; methane e. chemoautotrophs; hydrogen gas

Biology & Microbiology