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Protein Synthesis
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Identify the structure and function of DNA, RNA, and proteins. Recognize diagrams of DNA and RNA, sugars, phosphate groups, nitrogenous bases. Understand Complimentary base pairing. How DNA is replicated
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Stands for ____________________ Type of Nucleic Acid What chromosomes and genes are made of. Made of repeating ____________ sub-units.
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2 types of Nitrogen Bases ________________ Double ring ___& ___ _________________ Single ring ______&______&_______
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___________________________________ discovered the base pairing rules and ratios for different species. ________________ pairs with Thymine Cytosine pairs with ___________________
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Complementary: bases on one strand match up with the bases on the other strand (A-T and G-C) Example: Strand 1- ATG GGC Strand 2- Codon: Group of 3 bases
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History ____________________________took first picture of DNA using a X-ray machine.
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The Nobel Prize in Medicine 1962 _________________________________& ___________________________________ interpreted the photo and discovered the double helix structure.
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Genes: Stretch of ________ that codes for ____________. The code is the order of the ________________(letters). Genes are ___________________________________ _________________________ of bases long. The genetic code is a ___________________ in the _________ of cells.
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During _____ stage in interphase, DNA replicates itself. DNA replication is a ___________________________________ process.
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Semi-conservative means each new piece of DNA is made up of _______________ and ______________________. You end up with 2 identical strands of DNA.
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A __________of DNA that goes out into the ____________ to tell the cell what to do in order to stay alive RNA= ____________________ You can always make more __________, but no more _____________.
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Single ________instead of _______________ strand Ribose instead of ____________________ Uracil instead of _________________
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Transcription: _______ is made from 1 gene in DNA The type of RNA made is called ______________________because it sends a ___________ from DNA to the cytoplasm
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Transcription: _______________ one gene in DNA Match up bases to ________side of gene in DNA _________detaches from the DNA mRNA moves ______________________ and into ____________________ DNA: GAG AAC TAG TAC ACC TAT CGG GGG CAT RNA:
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mRNA is a message that codes for ________________________ _____________________ are made in the cytoplasm and then work to keep the cell alive
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Proteins are made up of ___________________(small building blocks) There are _________ different types of amino acids
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What causes mutations? A change in the DNA sequence A mistake that’s made during replication or transcription Can be: __________: diseases or deformities ____________: organism is better able to survive ____________: organism is unaffected If a mutation occurs in ________________________________, that mutation is passed on to offspring If a mutation occurs _____________________, that mutation affects on the organism and is not passed onto offspring.
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Point Mutations or Substitutions: bases are _______________________ Harmful when: ______________________________________ ______________________________________ Not harmful when: ______________________________________ ______________________________________ ______________________________________
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Example: Sickle Cell Anemia Types of mutations Frame Shift Mutations: bases are ______________________________________ ____________________________________ Are usually ____________ because a mistake in DNA is carried into mRNA and results in many wrong amino acids. Ex.: _________________
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Chromosomal mutations: Chromosomes ______________________________________ ______________________________________ __________________ chromosomes may ______________________________ Almost always ___________________ when it occurs in a zygote. Ex.: _________________________________
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Mutagens: ___________________________________ ___________________________________ Examples: x-rays, UV light, nuclear radiation, asbestos, cigarette smoke
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A complex system of ___________________, active in the __________ stage of interphase, serves as a back up to _____________________before it is dispersed into new cells during __________________
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The Human Genome Project is a ___________________________________ ___________________________________ ___________________________________ ___________________________________ This information will be useful in ___________________________________ ___________________________________ ___________________________________
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DNA technologies allow scientists to identify, study, and modify genes. Forensic identification is an example of the application of DNA technology.
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Gene therapy is a technique for ___________________________________ ______________ responsible for disease development. Possible cures for: diabetes cardiovascular disease cystic fibrosis Alzheimer's Parkinson’s and many other diseases is possible.
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The human manipulation of _________________________________ Recombinant DNA- Genetically engineered DNA prepared by ___________________________________ ___________________________________ Such DNA becomes part of the host's genetic makeup and is ________________
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Genetic engineering techniques are used in a variety of ___________________________________ ___________________________________ ___________________________________ __________________________________.
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There is great potential for the development of useful products through genetic engineering EX., ______________________________________ ______________________________________ ______________________________________ ______________________________________
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We can now grow ________________________________and soon ____________________will be a thing of the past, but will we go too far?
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