Prentice Hall Biology Chap 12 Sec 1-2

8 terms by Amelbert 

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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

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