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Biology AKH

Ch. 9 vocabulary

QuestionAnswer
vaccine a substance that is prepared from killed or weakened disease-causing agents, including 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 two strands twisted around eachother like a winding staircase
nucleotides the subunits that make up DNA
deoxyribose deoxyribonucleic acid
base-pairing rules rules stating that cytosine pairs with guanine and adenine pairs with thymine in DNA, and that adenine pairs with uracil in RNA
complementary base pairs strictness of base-pairing results in 2 strands
DNA replication process of making a copy of DNA
DNA helicases open the double helix by breaking the hydrogen bonds that ink the complementary nitrogen bases between two strands
replication forks areas where the double helix seperates
DNA polymerases replication fork enzymes
Created by: AKBabyyy
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