DNA Repair Mechanisms
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DNA
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DNA Timeline pt1
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DNA Timeline pt2
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Study Guide Biology
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Biology Semester 1 Final Study Guide A group of students wants to determine if different types of music affect the growth rate of plants. They expose one group to two hours of classical music, a second group to two hours of rock music, a third group to country music, and a fourth group to no music. Identify the following: independent variable, dependent variable, constants, and control. What are the 3 principles of the cell theory? Compare and contrast animals and plant cells. Animal Cells Plant Cells Describe the functions of nucleus, ribosome, chloroplast, mitochondria, endoplasmic reticulum, and golgi apparatus. Draw the cell membrane and label the proteins, phospholipids, cholesterol and carbohydrates.
AP Bio_dna_replication
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DNA Replication: A Closer Look * The copying of DNA is remarkable in its speed and accuracy * More than a dozen enzymes and other proteins participate in DNA replication Getting Started * Replication begins at particular sites called origins of replication, where the two DNA strands are separated, opening up a replication ?bubble? * A eukaryotic chromosome may have hundreds or even thousands of origins of replication * Replication proceeds in both directions from each origin, until the entire molecule is copied * At the end of each replication bubble is a replication fork, a Y-shaped region where new DNA strands are elongating * Helicases are enzymes that untwist the double helix at the replication forks * Single-strand binding proteins bind to and stabilize single-stranded DNA
AP Bio_dna_is_genetic_material
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The Molecular Basis of Inheritance Life?s Operating Instructions * In 1953, James Watson and Francis Crick introduced an elegant double-helical model for the structure of deoxyribonucleic acid, or DNA * Hereditary information is encoded in DNA and reproduced in all cells of the body * This DNA program directs the development of biochemical, anatomical, physiological, and (to some extent) behavioral traits * DNA is copied during DNA replication, and cells can repair their DNA Concept 16.1: DNA is the genetic material * Early in the 20th century, the identification of the molecules of inheritance loomed as a major challenge to biologists The Search for the Genetic Material: Scientific Inquiry
Living Environment - Genetics Review
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The Living Environment The study of organisms and their interactions with the environment. Topics Unit 1: Ecology Unit 2: The Cell Unit 3: Genetics Unit 4: History of Biological Diversity Unit 5: The Human Body GENETICS The science of heredity and the study of how traits are passed on from generation to generation. Mendelian Genetics: How Genetics Began Commonly referred to as the ?father of modern genetics? Gregor Mendel, born in 1822 in what is now the Czech Republic, published the first known findings of heredity in 1866. His primary findings were based on the study of pea plants during his 14 year tenure as an Austrian monk in charge of the monastery garden. Mendelian Genetics
Macromolecules worksheet
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Name: Macromolecule Chat Stations Complete the tasks at each station. Answer the questions on your own and then when your group is finished you may discuss and defend your answers with evidence from your foldable or the textbook on pages 45-49. STATION # 1: STATION #2: polysaccharides nucleic acids proteins a. + b. + c. + d. + STATION # 3:
Molecular Bionumbers Notes
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Useful fundamental numbers in molecular biology The numbers quoted here were extracted from the literature. They should only serve as ?rule of thumb? values. Consult the full references to learn about the specific system under study, growth conditions, measurement method etc. Full references at: www.bioNumbers.org Cell sizes: Bacteria (e.coli): ~1mm diameter, 2mm length, ~1mm3 in volume; 109cells/ml in an overnight culture (OD600~1) Yeast (Saccharomyces cerevisiae): ~5 mm diameter, ~50 mm3 in volume Mammalian (HELA) cell - ~2,000 mm3 in volume, adherent cell on a slide ~20 mm diameter ? ~100,000 cells in a confluent well of a 96 multiwell plate Organelles and cell constituents: Mammalian cell nucleus ~10 micron diameter
DNA
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Bio Study Guide Proteins are made of amino acids that are strung together in a chain. Each 3-letter DNA sequence, or codon, encodes a specific amino acid. DNA-->mRNA-->Protein: Dna to mrna is called transcription, mrna to protein is translation DNA is a double helix, backbone is made up of sugar and phosphate DNA is made up of 4 nucleotides Adenine and Thymine always pair, Guanine and Cytosine always pair DNA Technology and Genomics E. Coli- an organism used to clone genes Restriction Enzyme- Used to cut DNA at a specific location for splicing Biotechnology-Using organisms or their components to make useful products Genetic engineering-direct manipulation of genes for practical purposes Plasmid- a small piece of bacterial DNA used for gene transfer
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