Section 1 : Identifying the Genetic Material Griffith’s Experiments In 1928‚ Frederick Griffith‚ a bacteriologist‚ was trying to prepare a vaccine against pneumonia. A vaccine is a substance that is prepared from killed or weakened disease-causing agents‚ including certain bacteria. The vaccine is introduced into the body to protect the body against future infections by the disease-causing agent. Griffith discovered that harmless bacteria could turn virulent when mixed with bacteria that cause
Premium DNA
Biology Revision Notes Biochemical Tests: Proteins - add biurettes reagent to the sample. If protein is present‚ clear colour change from blue to purple. Reducing Sugars – add Benedict’s reagent to the sample. Heat in Bunsen or water bath. If reducing sugars are present‚ clear colour changes from blue -> orange red precipitate. Lipids – dissolve sample in ethanol. Slowly pour the solution into the water slowly. If lipids are present a white emulation forms on the surface. Starch – add iodine
Premium Immune system Enzyme Bacteria
Lauren Spillers Biology 1408 February 5‚ 2013 Lung Cancer Lung cancer is the number one form of deadly cancer in the United States. It is not only something that can kill you but also can put a strain on you and your family financially‚ emotionally‚ and medically. Lung cancer is formed when the cells of the lungs grow in an uncontrolled way‚ this creates a lump or a tumor which can either be malignant (cancerous) or benign (not cancerous). Radon gases‚ smoking‚ and second hand smoke cause lung
Premium Lung cancer Cancer
for-profit companies who pursue a triple-bottom-line outcome. Campbell Soup Company has been environmentally conscious and socially responsible since 1953. The Campbell Soup Foundation has been supporting local communities where employees live and work financially. Campbell Soup’s headquarters is located in Camden‚ New Jersey where they donate approximately $1 million each year to impact the local residents in a positive manner (Campbell Soup Foundation). They focus on hunger relief‚ childhood obesity
Premium Natural environment Environment Sustainability
persevering and sacrificing for the better. For instance‚ a real-life hero is a firefighter. They go out into dangerous fires to save the lives of thousands of people and animals. Joseph Campbell illustrates this when he says‚ ¨A hero is someone who has given his or her life to something better than oneself.¨(Joseph Campbell) Even though it may be a life-risking task‚ they still persevere to save lives and inspire everyone around them with their
Premium Hero English-language films Human
In biology species can become isolated from other species through a number of processes. These isolation processes keep the two species from interbreeding and producing hybrid offspring. There are five separate isolation processes that prevent two species capable of producing offspring from being able to do so. Ecological Isolation Ecological‚ or habitat‚ isolation is when two species that could interbreed do not because the species live in different areas. For example‚ in the wild of India both
Premium Pollen Hybrid Barrier
January 31‚ 2014 Mr. Robinson IB Biology I 2ND Period The Effects of Light on Plant Growth Introduction: Photosynthesis is the process in which plants use light energy‚ water‚ and carbon dioxide to produce food. Plants use the food they make for the growth and for the carrying out other life processes. Sunlight is the natural energy source for photosynthesis. White light form the sun is a mixture of all the colors of the light spectrum: red‚ orange‚ yellow‚ green‚ blue‚ and violet. Light
Premium Color Chlorophyll Plant
Biology Worksheet Name ________ Chapter 11.1 Period _____ Section 11.1 The Work of Gregor Mendel Matching. Select the letter in front of the term that matches the statement. Type the “upper case” letter in the “answer” column. Use red font color. Q Term Answer Statement 1. A. Allele Process in sexual reproduction in which male and female reproductive cells join to produce a new cell. 2. B. Fertilization A specific characteristic of an individual. 3. C. Gamete One
Premium Genetics Gregor Mendel Pea
Thomas Campbell‚ who was born in 1763 in County Down‚ Ireland‚ was the son of a Roman Catholic who had turned Anglican. Thomas’ own deep devout nature found more congenial association among the Presbyterians who were more numerous in northern Ireland because of migrations from Scotland. After a short period of teaching‚ he decided to give himself to the ministry and won his father’s consent. A scholarly‚ pious pastor in Ireland‚ Thomas was thoroughly orthodox according to Presbyterian standards
Premium United Kingdom Family United States
Personal life: Kim Campbell was born March 10‚ 1947 in Port Alberni‚ British Columbia‚ Her mother left the family when she was 12‚ leaving Kim and her sister Alix‚ to her father. In high school she became the school’s first female student president‚ and then graduated in 1964. After many years of university she settled down with Divinsky. Divorced 1983‚ then married Howard Eddy in 1986‚ divorced and common law married Hershey Felder. Biography: Kim Campbell ran in the 1988 federal election as
Premium Family Friendship Time