BLUEPRINT OF LIFE: CHAPTER 2 GENETICS Gregor Mendel’s experiments helped advance our knowledge of the inheritance of characteristics 2.1 GREGOR MENDEL AND THE BIRTH OF GENETICS Gregor Mendel (1822-84) – ‘the father of genetics’ Born in Austria He was an Augustinian monk He worked as a teacher and as an investigator He observed the growth of peas He recorded the ratios of characteristics that appeared in the offspring His discovery stated he observed a pattern in the inheritance of characteristics
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increasing pH? Which structures‚ if found in a cell‚ would provide the best evidence that the cell is eukaryotic? Where in the cell do the following occur? Calvin cycle‚ glycolysis‚ Kreb’s cycle‚ electron transport chain. Students in a biology class tested the effects of antibiotics on the growth of bacteria. They cultured bacteria in four glass Petri dishes and then added different amounts of antibiotic to each dish. After the experiment is completed‚ what should be done with the Petri
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Introduction Last week‚ my Biology class and I went down to the Port Kembla Rock Platform. While we were there we surveyed five different sectors about the rock platform and recorded them‚ these included: 1. Surveying the abiotic characteristics of the rock platform 2. Observing the abundance and distribution of the Black Periwinkle (Nerita Atramentosa) 3. Observing the feeding relationships and food webs of the organisms 4. Finding the adaption’s of organisms 5. And Observing the human impacts
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the National Latin Exam‚ and a four-time junior middle-weight champion in finger jousting. Psychology explains my behaviors‚ biology determines my physical characteristics‚ and culture molds my social consciousness. I’m a student by day and sitcom aficionado by night. I live by the law of eccentricity (the one governing uniqueness‚ not 61 053-43858_ch01_3P.indd 61 5/11/10 6:48 AM 50 Successful Harvard Application Essays planetary orbits). I have sold my soul to comedy and have learned
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Biology- Maintaining a Balance Summary 1. Most organisms are active in a limited temperature range 1. identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are proteins which act as catalysts in living things (they lower the amount of energy needed for a reaction‚ therefore increasing rate of reaction). Enzymes speed up reactions but are not used up by them. Enzymes catalyze only one
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HOMEOSTASIS BIOLOGY I BIO091 Prepared by: Nur Syakireen Bt. Ishak SCOPE •Definition and importance of homeostasis •Homeostatic organ •Negative and positive feedback mechanisms •Blood-glucose regulation •Thermoregulation •Osmoregulation DEFINITON & IMPORTANCE OF HOMEOSTASIS Homeostasis • Homeostasis: • is the steady state of physiological condition of the body. • it is the physiological processes by which organisms maintain a constant & balanced internal environment. • In achieving
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Chapter 1: Biology- The study of life A Hierarchy of Organization 1. Molecules 2. Organelle 3. Cell 4. Tissue 5. Organ 6. Organism Emergent Properties- Novel properties that emerge as each step up the hierarchy of biological order is taken. Reductionism- Reducing complex systems to simpler components that are more manageable to study. Cells- The lowest level of structure capable of performing all the activities of life‚ all organisms are composed of cells which are the basic units of structure
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Biology – Preliminary – Evolution of Australian Biota 1. Evidence for the rearrangement of crustal plates and continental drift indicates that Australia was once part of an ancient super continent identify and describe evidence that supports the assertion that Australia was once part of a landmass called Gondwana‚ including: ▪ − matching continental margins ▪ − position of mid-ocean ridges ▪ − spreading zones between continental plates ▪ − fossils in common on Gondwanan continents
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Phospholipid: Molecule that forms a double-layered cell membrane; consists of a glycerol‚ a phosphate group; and two fatty acids. 2. Selectively permeable (Semi): Condition or quality of allowing some‚ but not all‚ materials cross a barrier or membrane. 3. Receptor: Protein that detects a signal molecule and performs an action in response. 4. Diffusion: Movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration. 5. Osmosis: Diffusion of
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creates a rain shadow 5. What meteorological factors influence biomes? a. Rainfall b. Temperature c. Circulation d. ENSO 6. How do vegetative features influence biomes? a. Coverage Canopy 7. How do biomes support the concept of natural selection? a. They demonstrate climate effects on adaptations of organism(Convergent Evolution) 8. Where is the arctic tundra located? a. Above 60o N latitude b. Continuous circle in the northern hemisphere 9. What is the growth form of the arctic plants
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