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What is 1 + 3?
a substance that is prepared from killed or weakend disease causing agents including certain bacteria
able to cause disease
a change in genotype caused when cells take up foriegn genetic material
a virus that infects bateria
two strands twisted around eachother
subunits that make up DNA
the five-carbon sugar in DNA nucleotides
the structure and size of the nitrogen bases allows for only these two paired combination
complimentary base pairs
the sequence of the strand on one strand determinesthe sequence of bases on the other strand
the processof making a copy of DNA
open the double helix by breaking the hydrogen bonds that link the complimentary nitrogen bases between the two strands
the areas where the double helix seperates
move along each of the DNA strands, adding nucleotides to exposed nitrogen bases according to the base pair rules