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Published byMervyn Warren Modified over 6 years ago
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Sex-linked traits Genes that are carried on the X chromosomes
Examples: Hemophilia Baldness Red-green color blindness
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Genetic Engineering Changing one or more genes in the DNA of an organisms Genetically Modified Food Genetically Modified Pests Genetically Modified Animals Genetically Modified Humans?
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The Process: Gene Replacement
1. The original gene is cut out of the organism that will be modified 2. An engineered gene is added in place of the cut out gene
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The Process: Cloning Cloning is used when an identical copy of a cell or organism is desired Can be used to create an entire new individual Can be used to create specific cells in disease treatment
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GMOs = Genetically Modified Organisms
Why – Allows for specific traits in organisms Examples – Crops with higher crop yield (bigger, more fruit, vegatables) Pest Resistance Increased temperature tolerances
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Bioluminescent Animals
Uses: Protein tracking Disease detection using bioluminescent imaging (BLI) to identify different types of cells Novelty pets (Glofish are available now) Image sources: Upper left-a fungus displaying bioluminescence: 2009, Ylem, Wikimedia Commons Upper right-common house mouse: 2004 NIH, Wikimedia Commons Lower-2 mice expressing enhanced green fluorescent protein: 2012 Ingrid Moen et al., Wikimedia Commons
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Fast-Growing Salmon Less Smelly Cows
Genes from two other fish cause this salmon to continually produce growth hormones Less Smelly Cows Modifying bacteria responsible for methane production in cattle results in 25% less-flatulent cows Image sources: Upper left: (under Google’s “labeled for resuse”) Lower right: 2002 Keith Weller, USDA, Wikimedia Commons
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CRISPR Genome editing tool
Has the potential to allow genetic engineering of the human genome and animal genomes TED talks CRISPR
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Bringing Back Species from Extinction
National Geographic
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Genetic Engineering in the News
engineering.htm?mediatype=Video&page=3 engineering.htm?
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