BIOL 109 Week 1
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This 1 page Class Notes was uploaded by Catherine walbrecher on Thursday January 28, 2016. The Class Notes belongs to BIOL 190 at Towson University taught by preeti shah in Spring 2016. Since its upload, it has received 120 views. For similar materials see Introductory Biology for health professions in Biology at Towson University.
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Date Created: 01/28/16
Unit ! DNA: Structure and Function 1. Biology: the study of life. a. Properties of life i. Individual living creatures 1. #1 presence of DNA 2. Orderly structure- organ systems (made up of cells) All 3. Reproduction 4. Growth and development directed 5. Energy and processing by DNA 6. Response to environment 7. Regulation ii. Groups (populations) of living creatures Based 1. Evolutionary adaption- ability to change genetically / on better adapting to current environment change 2. *** Mutation- permanent alteration in structure of s in DNA*** 2. Deoxyribonucleic acid (DNA) a. Unity and diversity of life DNA i. Unity- DNA has some basic structure in ALL forms of life ii. Diversity- however different in each species/individual iii. ***Every living organism has a unique DNA *** RNA b. Controls all structure and function i. Codes for proteins A,T,C,G ii. Proteins make up cell structure and carries out function Proteins iii. Pathologist, look at cell structure c. Heredity i. We resemble our parents d. Helps us understand medicine i. Disease, diagnosis, and treatment e. Helps dispute paternity issues i. Through DNA testing 3. Structure of DNA a. Double Helix i. Two strands made up of repeating nucleotide subunits ii. ***nucleotide- PO4 (phosphate group), sugar (deoxyribose), and a base (A,T,C,G) iii. strands run parallel but opposite directions b. Base pairs link strands though hydrogen bonds i. Big base + small base ii. A- T (2X H) iii. G-C (3X H)
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