Chapter 12 Vocab not in glossary

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Chapter 12 Vocab not in glossary

NUCLEOSOME – Beadlike structure formed by coiling DNA around histone proteins that pack together to form chromosomes REPRESSOR – molecule that binds to the operator region of an operon and “turns the gene off”

ADDITIONAL WORDS FOR HONORS BIO ANTI-PARALLEL- Orientation in which the two complementary strands in a DNA molecule run in opposite directions TRANSPOSON- Sequence of DNA that can jump from one location to another which is thought to be involved in increasing mutations in cells

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