________ are bacteria that can grow on minimal medium and are assumed to be wild type

A) Auxotrophs B) Hfr C) F+ cells D) Mutants E) Prototrophs


Answer: E

Biology & Microbiology

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What would result from a single nucleotide deletion (point mutation) within the coding sequence of a structural gene?

A. a silent point mutation with no deleterious effects B. a missense point mutation resulting in the change of one amino acid C. a nonsense point mutation resulting in the generation of a premature stop codon D. a frameshift mutation, producing a different amino acid sequence altogether E. All of the choices are possible.

Biology & Microbiology

Which process must occur after meiosis for successful production of offspring?

a. mutation b. natural selection c. gene flow d. fertilization

Biology & Microbiology

What structures in the cell of a fungus are not present in animal cells?

a. cell walls of cellulose and chloroplasts b. cell walls of cellulose c. cell walls of chitin and chloroplasts d. cell walls of chitin

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Much of the nitrogen taken in by a plant is used to synthesize the molecules rubisco and ________

Fill in the blank(s) with correct word

Biology & Microbiology