Which of the following mechanisms is used by retrotransposons?

A. cut-and-paste transposition
B. replicative transposition
C. bacterial transduction
D. transposition via an mRNA intermediate
E. lysogeny


D

Biology & Microbiology

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Phosphorylation of ________ regulates which direction a flagellum rotates, thus controlling whether an organism runs or tumbles

A) CheAW B) CheB C) CheY D) CheZ

Biology & Microbiology

Polygenes are involved in determining continuously varying or multiple-factor traits

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following terms includes all of the others in the list?

a. fern b. seed plant c. gymnosperm d. vascular plant e. angiosperm

Biology & Microbiology

What structure best represents a polymer?

A. an amino acid B. a monosaccharide C. a nucleotide D. a protein E. a fatty acid

Biology & Microbiology