Chromosomes

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Week 2

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9 Terms

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Cell Division

process where celss create new cells

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Telomeres

-noncoding DNA

-location: tips of eukaryotic chromosomes

-lifespan: # of times a cell can safely divide

-protective caps

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Telomerse Disease

Hutchinson-Gilford Progeria

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DNA Replication 2 steps

1) unwinding and separation

2) reconstruction and elongation

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Step 1

starts at the origin of replication—> DNA splits into two strands

prokaryotes =single eukaryotes = multiple

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Reconstruction and Elongation

proteins bind to strands

DNA polymerase - adds nucleotides with complementary bases

-repairs errors that occurred in DNA replication

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