1. What are the characteristics of a living organism? 2. How do you determine the TOTAL magnification of the field of view of a microscope? 3. What is homeostasis? How is homeostasis important to the survival of an organism? How is homeostasis maintained in a human? 4. What is the difference between diffusion and osmosis? 5. Define osmosis‚ hypertonic‚ hypotonic‚ isotonic solutions 6. What happens if you have a high concentration of salt water on the outside of the egg‚ yet there is very little
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carcinogens. Which one of the following is false? Selected Answer: b. DNA packing tends to promote gene expression. Silencers are sites in DNA that Selected Answer: c. bind repressor proteins to inhibit the start of transcription. Proteins that bind to DNA and turn on operons by making it easier for RNA polymerase to bind to a promoter are called Selected Answer: d. activators. Which of the following best expresses the degree of success that has
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Genetic Code Introduction In the previous activity‚ you learned how DNA encodes the instructions for creating proteins. You also learned about the basics of the process of protein synthesis. In this activity you will apply your knowledge of transcription and translation to decode a secret message as well as investigate the effect that various mutations have on protein production. You will then look specifically at the genetic mutation that causes sickle cell disease. Equipment Computer Laboratory journal
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Plant hormones are specialized chemical substances produced by plants. They are the main internal factors controlling growth and development. Hormones are produced in one part of a plant and transported to others‚ where they are effective in very small amounts. Depending on the target tissue‚ a given hormone may have different effects. Plant hormones play an integral role in controlling the growth and development of plants. A plant hormone is generally described as an organic compound synthesized
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Nicole Williams MUS 110 IN2 Unit 2 Writing Assignment Some distinctive stylistic features of the Middle Ages were monophonic styles and polyphonic styles. Church modes were the scales of western music during the Middle Ages. They are like the major and minor scales that consist of seven tones and an eighth tone that duplicates the first octave higher. The Gregorian chant was the official music for the Roman Catholic Church for over a thousand years. The Gregorian chant has some elements
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For a non-technical introduction to the topic‚ see Introduction to genetics. For other uses‚ see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour-coded by element and the detailed structure of two base pairs are shown in the bottom right. The structure of part of a DNA double helix Deoxyribonucleic acid (DNA) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses
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it is to be made and reproduce. Ribonucleic acid (RNA) is the assistant to the foreman and helps carry out transfers of genetic code and creation of proteins. RNA reads the sequence of DNA through transcription (mRNA)‚ transfers (tRNA) a single strand copy of the DNA being used‚ and with translation (rRNA) new proteins are created. Both code and code reader work together to make you‚ well you. Let’s discuss DNA and RNA and the roles they play in genetics and possible medical applications. DNA
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Name and describe the three main parts of a cell. plasma membrane-forms a cell’s flexible outer surface‚ separating the cell’s internal environment (inside the cell) from its external environment (outside the cell) cytoplasm- consists of all the cellular contents between the plasma membrane and the nucleus. nucleus- is the largest organelle of a cell. The nucleus acts as the control center for a cell because it contains the genes‚ which control cellular structure and most cellular activities
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DNA polymerase. The copies of viral genome act as a template for transcription into late mRNA‚ which leaves the nucleus for translation into late viral proteins in the cytoplasm. The late proteins are structural proteins that are transported back into the nucleus for the next stage of replication (VanMeter‚ 2010). RNA viruses cannot be transcribed the same way as DNA viruses. RNA viruses must provide their own polymerase if transcription is necessary. If dsRNA happens‚ one strand is first transcribed
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Biology 103 Test 4 Chapters 9‚10‚11‚12 Multiple Choice 1) A monohybrid cross is A) the second generation of a self-fertilized plant. B) a breeding experiment in which the parental varieties have only one trait in common. C) a breeding experiment in which the parental varieties differ in only one character. D) a triploid plant that results from breeding two very different plants. E) a breeding experiment in which the parental varieties have only one prominent trait. 2) Which of the
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