New genetic combinations result from
a. crossing over.
b. sexual reproduction.
c. mutations.
d. exchange of genes between different species.
e. all of these
E
Biology & Microbiology
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Nitrogen fixation is
A) rare among microorganisms. B) widespread among microorganisms. C) limited to Proteobacteria. D) common in Bacteria, but absent in Archaea.
Biology & Microbiology
The surface of a plant root is called the ________.
What will be an ideal response?
Biology & Microbiology
Hershey and Chase used radioactive sulfur to label the genetic material of bacteriophages
Indicate whether the statement is true or false
Biology & Microbiology
The population will be largest during the
A. lag phase. B. exponential growth phase. C. stable equilibrium phase. D. death phase.
Biology & Microbiology