Biology Notes Genetics Trait - distinguishing characters or phenotypic features of an individual. (e.g. Blue eyes‚ black hair‚ etc.) Purebreed - having descended from ancestors of a distinct type or breed. Purebreed organisms in a given species or variety all share similar traits. (e.g. Purebred dog.) P Generation - Designation given to the parent generation. F1 and F2 generation - First and second filial generation. First Filial Generation - offspring from the cross of the P generation.
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Nearly all commercial embryo transfer done now use nonsurgical recovery rather than surgical techniques‚ as there is less hassle and less danger‚ in terms of bleeding‚ infection‚ etc. 1. Choosing the donor cow The first step in the procedure is to select the donor cow. This is the cow whose genes will be passed down to the next generation(s). Therefore‚ it is important to choose the cows with best genes‚ whether it is for beef‚ so the cow that grows the largest and/or largest‚ or for dairy‚ so
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HEAT TRANSFER MECHANISMS Heat energy is being transferred from one location to another because of a temperature difference. The three mechanisms for heat transfer are: • Conduction. When you grip the hot handle of a pan on a stove‚ you feel conduction in action. Heat flows from the pan and along the length of the handle to its cooler free end. This is because one end of the rod is held at the high temperature‚ and the other end stays at the lower temperature. Although the rod itself doesn’t
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entertainment. No one wants to go to a dull‚ boring museum and look at dull‚ boring paintings. One museum that capitalized on human intrigue was that of Charles Wilson Peale. Peale established the first natural history museum in the United States. (AP Intro‚ Source B) His portrait shows him holding a large curtain slightly open‚ enticing the viewer and piquing his interest towards the tall wall of paintings in the background. (B) This kind of mystery and intrigue encourages natural human curiosity
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upcoming election and everything that changes with the government. The spring of my sophomore year I was looking for different classes to take‚ I saw AP Government. I thought I could do well in that class‚ I was motivated to learn something new and excel at something I was not very interested in. The first day of junior year came quickly. Then the first AP government test came even quicker. I studied the night before for hours thinking positive thoughts and finding funny ways to remember different answers
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Extra Credit Assignment Energy Transfer in living systems Energy is the capacity to do work. All living organisms require energy for carrying on their vital metabolic activities. The primary source of energy for living system is solar radiation. The radiant energy of sunlight cannot be utilized directly by all living organisms. This ability rests only with the green plants. All the other organisms have to meet their energy requirement only through the green plants. Energy that flows in the living
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Marine Biology is the scientific study of organisms that are dependent on water. Marine Biology is an interesting topic to many people because of the exotic animals you get to work with. A career in Marine Biology can be dangerous because of the wild animals‚ but at the same time it can be fun. It takes time‚ training‚ and intelligence to succeed in the career. In order to make it in this Biology field you must complete a college work in oceanography‚ marine biology‚ or conservation. You will
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Neurospora 0 3 3 3 3 3 3 3 3 5 6 6 2 3 4 5 9 13 13 18 18 17 19 19 01.05: Earth’s Early Atmosphere Biology What does it mean when scientists say that living organisms share a universal genetic code? -When scientists say that living organisms share a universal genetic code‚ they mean that they share similar amino acids in their genetic sequence‚ to a certain extent. There are changes in the code but they are still similar
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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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Biology Revision summer 2012 1-Characteristics of living organisms Nutrition- taking in of nutrients which are organic substances and mineral ions ‚ containing raw materials or energy for growth and tissue repair ‚ absorbing and assimilating them . Excretion- the removal from organisms of toxic material‚ the waste products of metabolism and substances in excess of requirement . Respiration- the chemical reactions that break down the Sensitivity- The ability to detect or sense changes in the
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