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24 maj 2018 · Science fiction is quickly becoming science fact. Another daring genetic experiment to bioengineer animals could prevent Lyme disease. But the power to make life comes with deep ethical...
17 lut 2021 · To find out, host David Pogue investigates the surprising molecules that allowed life on Earth to begin, and ultimately thrive. Along the way, he finds out what we’re all made of—literally.
17 mar 2020 · The NOVA collection on PBS LearningMedia contains over 1,500 resources from NOVA’s broadcast and digital productions that parents and educators can use to spark and enrich middle and high school...
14 mar 2022 · This is a collection of free biology worksheets, notes, handouts, slides, study guides and quizzes. Most content targets high school, AP biology, genetics, anatomy/physiology, immunology, and biology 101 and 102 in college. There is also biochemistry and physics for biologists.
Phosphate-buffered saline (PBS) is a buffer solution (pH ~ 7.4) commonly used in biological research. It is a water-based salt solution containing disodium hydrogen phosphate, sodium chloride and, in some formulations, potassium chloride and potassium dihydrogen phosphate. The buffer helps to maintain a constant pH.
Answer key to DNA fingerprinting, a virtual lab students complete online using a simulation at pbs.org.
Answer Key - Chapter 25 (31.0K) Answer Key - Chapter 26 (36.0K) To learn more about the book this website supports, please visit its Information Center .
