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Uiuc Mcb 150 Exam 2 Study Guide

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UIUC MCB 150 EXAM 2 STUDY GUIDE

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UIUC MCB 150 EXAM 2 STUDY GUIDE
Topoisomerase - Answers :Wind, unwind, cut, and supercoil DNA

Nuclease - Answers :Enzyme that degrades DNA

Nucleosomes - Answers :8 proteins, 147 base pairs

Histones - Answers :Small, basic proteins
-H1, H2A, H2B, H3, H4

Chromatosome - Answers :Nucleosome, 10 bp DNA on each side, H1

Leading Strand - Answers :Strand that can go through DNA synthesis uninterrupted

Lagging Strand - Answers :Starts away from ori, then works backwards

Okazaki Fragments - Answers :Small fragments of DNA in lagging strand

Euchromatin - Answers :Loosely condensed, found throughout nucleus in 30-nm fibers

Heterochromatin - Answers :Highly condensed, found in periphery of nucleus

Helicase - Answers :Enzyme that separates DNA strands

Primase - Answers :DNA-dependent, RNA-synthesizing enzyme

DNA Polymerase III
(E. Coli) - Answers :Synthesizes the new DNA molecule

DNA Polymerase I - Answers :Removes primers and replaces w/ DNA nucleotides

DNA Ligase - Answers :ATP-dependent, seals nicks in strand

Transcription - Answers :Making RNA from DNA

RNA Polymerase
(E. Coli) - Answers :Copies DNA into RNA

Holoenzyme - Answers :6 units of the Polymerase together

Core Enzyme - Answers :Polymerase without pi subunit

Promoters - Answers :Markers for beginning of genes

Coding strand - Answers :Non-template strand

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