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Biology Chp 9

Alves chp 9 vocabulary words

QuestionAnswer
Vaccine a substance prepared from killed or weakened pathogens and introduced into a body to produce immunity
virulent describes a microorganism or virus that causes disease and that is highly infectious
transformation the transfer of genetic material in the form of DNA fragments from one cell to another or from one organism to another
bacteriophage a virus that infects bacteria
double helix the spiral-staircase structure characteristic of the DNA molecule =
Created by: Bytor7
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