YOUR NOTES UNIT 2 NOTES DNA (deoxyribonucleic acid) DNA Functions • Stores genetic information and copies itself (replication) to pass on the information • Contains genes (instructions to make proteins) • Instructs cell’s activities DNA Structure • DNA is a polymer of nucleotides • Chromosomes (DNA strand + associated proteins ie. Histones wrap DNA around like a spool = condensed chromatin) ↓ genes (sections of a chromosome that codes for a protein) ↓ nucleotides (3 parts:
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DNA Testing in the Hiring Process 5 Theory Approach In modern society‚ businesses are always trying to improve their model‚ employees‚ and product. Companies naturally wish to hire the best employees they possibly can‚ and avoid those that might harm or hinder their growth. In the past of the United States‚ many companies have taken these aspirations so far as to incite legislation intended to protect the rights of individuals from those of a business. Laws such as the Americans with Disabilities
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the quest of determining the three- dimensional structure of DNA‚ they believed that the DNA structure would be great importance. Watson and Crick accomplishment was in some measure built on the work of their contemporary DNA researchers. 1951 Rosalind Franklin x-ray crystallography of the DNA molecule without her know- ledge‚ for instance‚ was a vital step toward discovery. She began to capture pictures of DNA using x-ray diffraction. She also pre- sented her findings in a
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Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. * * There has been a major effort in the history of science to figure out the structure of DNA. Having a double standard helix DNA has a uniform a diameter in its entire length. The helixes fit within a defined three dimensional space because they are both right handed. Polynucleotide chains are held together by the bases in the (center) hydrogen bonding
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3.3 & 7.1 DNA Structure Worksheet 1. Draw and label the structure of a simplified single nucleotide‚ including sugar‚ phosphate and base. 2. Complete the table below to show the pairings of the bases in DNA: Purine | Pyrimidine | Adenine | Thymine | Guanine | Cytosine | 3. Where would one find the base uracil? RNA‚ it replaces thymine 4. In the space below‚ draw a single strand of three nucleotides‚ naming the bonds between them and showing the correct relative position
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DNA Profiling and Ethics Reflection Journal Vanshika Khemka 14th October 2012 "33 autorad off" On 10th September 1984‚ geneticist Alec Jeffrey’s wrote these three words in his red desk diary. This marked the completion of an experiment‚ which studied how inherited illnesses pass through families. The experiment failed entirely. (McKie‚ 2009) However‚ this led to the most profound discovery: the world’s first DNA fingerprint. Now‚ the smallest swab of blood or sweat can determine
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Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. DNA really stands for Deoxyribonucleic acid. DNA is a right handed double helix. Nucleotides that mount together by phosphodiester bonds make up DNA. It also contains a spiral strand that is made of phosphate backbone and secure bases (Adenine‚ Guanine‚ Cytosine‚ Thymine). Cytosine and Thymine are Pyrimidines‚ while Adenine and Guanine are Purines.
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TRANSCRIPTION: Transcription is the process of which DNA matches corresponding RNA bases‚ Transcription is located in the Nucleus‚ and the only type of RNA that is involved in Transcription is mRNA‚ and the purpose is so that the code can get out of the Nucleus‚ mRNA is also made through Transcription‚ It also takes information that doesn’t directly make proteins but it helps makes codes for the production of proteins‚ DNA Transcription consist of 4 nucleotide bases‚ Adenine‚ Thymine‚ Cytosine‚ Guanine
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A mutation is a change in DNA. To be more specific‚ it’s a change in the arrangement of bases in an individual gene or the structure of the chromosome which changes the arrangement. There are many types of mutations such as point mutation‚ frameshift‚ and chromosomal mutations. Each kind can either be very effective or not change much at all. It depends on the exact case and which kind it is. Some are more severe then others‚ for example point mutation is much less harmful then chromosomal mutation
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Carbohydrates have two major functions in plants and animals: they serve as fuel and building material. Plants store most of their energy in the form of starch. Starch is a polysaccharide (consisting of several conjoined sugars). Synthesizing starch enables the plant to stockpile surplus glucose‚ and since glucose is a major cellular fuel‚ starch represents stored energy. The sugar can later be withdrawn by hydrolysis‚ which breaks the bonds between monomers. Animals‚ in turn‚ have enzymes that
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