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bio 9 yep

Ch.9 vocabulary words

QuestionAnswer
vaccine a substance is prepared from killed/weakened disease-causing agents (ex. certain bacteria)
virulent able to cause disease
transformation a change in genotype caused when cells take up foreign genetic material
bacteriophage a virus that infects bacteria
double helix 2 strands twisted around each other, like a winding staircase
nucleotides subunits that make up DNA
deoxyribose the 5-Carbon sugar in DNA nucleotides
base-pairing rules rules that say adenine and thymine/ cytosine and guanine are paired
complementary base pairs the strictness of base pairing results in 2 strands.... pairing of correct pairs
DNA replication processof making a copy of DNA
DNA helicases enzymes; open the double helix by breaking hydrogen bonds that link the complementary nitrogen bases between the 2 strands
replication forks the areas where the double helix seperates
DNA polymerases enzymes; move along each of the DNA strands
Created by: REALrunnerbecca
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