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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constituents are hydrogen‚ carbon ‚oxygen and nitrogen. A protein structure consists of a specific sequence of amino acids called the primary structure‚ this particular sequence determines the secondary structure of the protein which can be α-helix or β-pleated sheet. This then further folds to form the tertiary structure . The primary structure determines the eventual shape of the protein and thus its function ‘’Different proteins can appear very different and perform diverse functions’’
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Between the symbolism and allusions‚ the poem covers the entire Bible‚ from Genesis to Revelations. In the first stanza‚ “mere anarchy” refers to the flood in Genesis. The last stanza refers to the anti-christ and the time of the apocalypse. In the final lines Yeats describes the sinners as “rough beasts” dragging themselves to Bethlehem for the second coming of Christ. The body of the poem describes the decay of society. It refers to the non-believers‚ or atheists and the real problem‚ the
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Chancourtois | The first person to notice the periodicity of the elements — similar elements seem to occur at regular intervals when they are ordered by their atomic weights. He devised an early form of periodic table‚ which he called the telluric helix. | John Newlands | Classified the 56 elements that had been discovered at the time into eleven groups which were based on similar physical properties. He also noted that many pairs of similar elements existed which differed by some multiple of eight
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Indiana‚ Copenhagen and Cambridge University where he joined Francis Crick in the attempt to find the chemical structure of living matter. http://t1.gstatic.com/images?q=tbn:ANd9GcQUceZSNxrQ7_IAvEm3D1SuT4wWb-g7jm-xI4fOMKI2mJvSMixaUg The Double Helix In 1953 Watson and Crick presented the three dimensional double-helical model as the first DNA structure. Scientists today have only made some changes to Watsons and Cricks original model but have kept major features of their structure‚ like the genetic
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A Seminar Report INDEX • DNA • DNA Structure • Interesting Facts • What is Need? • Where it all started? • How it works? • DNA Chip • Advantages • Challenges to Implementation • Goals for This Work • Applications • Limitations • Latest Developments • Comparison of DNA computers with conventional Computer • Features of DNA computer • DNA
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DNA – RNA Notes The sugar in DNA is called deoxyribose. The sugar in RNA is called ribose. -RNA is a single strand of nucleotides. DNA is made of two strands of nucleotides. -DNA is a double helix with hydrogen bonds linking the nitrogen bases. RNA is a linear strand with no hydrogen bonds. -The bases of DNA are: Adenine‚ Thymine‚ Cytosine‚ and Guanine. The bases of RNA are: Adenine‚ Uracil‚ Cytosine‚ and Guanine. -RNA does not have Thymine‚ and DNA does not have Uracil. -In DNA
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acids dissolved in the cytoplasm to the ribosomes to help build the polypeptide chain for proteins to be synthesized. rRNA (or ribosomal RNA) combines with proteins to form ribosomes that serve as the site of protein synthesis. It unzips the DNA helix and transcription begins. Transcription is the first step of gene expression‚ in which a particular segment of DNA is copied into RNA by theenzyme RNA polymerase. Both RNA and DNA are nucleic acids‚ which use base pairs of nucleotides as acomplementary language
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glucose monomers are linked by 1‚4 glycosidic bonds. This means that the bond connects carbon atom number 1 in one glucose to carbon atom number 4 in the other glucose. This produces an unbranched chain of glucose which then folds up to form a coil or helix. In amylopectin there are two types of glycosidic bonds: 1‚4 and 1‚6. The 1‚4 links are the same as in amylose. In addition some glucose molecules have a glycosidic link from carbon atom number 6 to carbon atom number 1 in a new glucose molecule
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Summer Assignment – AP Biology – Chapters 2-5 Chapter 2 1. CHNOPS are the six most crucial elements in most macromolecules. Name them. Carbon‚ Hydrogen‚ Nitrogen‚ Oxygen‚ Phosphorous‚ Sulfur. 2. Create a chart and state how many bonds each of the CHNOPS elements can form. Carbon | Hydrogen | Nitrogen | Oxygen | Phosphorous | Sulfur | 4 | 1 | 3 | 2 | 3 or 5 | 2 | 3. Create a Venn Diagram to compare and contrast polar covalent bonds‚ nonpolar covalent bonds‚ and ionic bonds.
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