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8 terms

Prentice Hall Biology Chap 12 Sec 1-2

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transformation
process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria
bacteriophage
virus that infects bacteria
nucleotide
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
base pairing
principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
chromatin
granular material visible within the nucleus; consists of DNA tightly coiled around proteins
histone
protein molecule around which DNA is tightly coiled in chromatin
replication
copying process by which a cell duplicates its DNA
DNA polymerase
enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule