Database management systems A database management system (DBMS) consists of software that operates databases‚ providing storage‚ access‚ security‚ backup and other facilities. Database management systems can be categorized according to the database model that they support‚ such as relational or XML‚ the type(s) of computer they support‚ such as a server cluster or a mobile phone‚ the query language(s) that access the database‚ such as SQL or XQuery‚ performance trade-offs‚ such as maximum scale
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DATABASE APPLICATION SOFTWARE A database application is a computer program whose primary purpose is entering and retrieving information from a computer-managed database. Early examples of database applications were accounting systems and airline reservations systems‚ such as SABRE‚ developed starting in 1957. A characteristic of modern database applications is that they facilitate simultaneous updates and queries from multiple users. Systems in the 1970s might have accomplished this by having
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WHAT IS RECOMBINANT DNA So what is rDNA? It stands for Recombinant DNA. Before we get to the “r” part we need to understand DNA. DNA is the keeper of all the information needed to recreate an organism. All DNA is made up of a base consisting of sugar‚ phosphate and one nitrogen base. There are four nitrogen bases‚ adenine (A)‚ thymine (T)‚ guanine (G)‚ and cytosine (C).The nitrogen bases are found in pairs‚ with A & T and G & C paired together. The sequence of the nitrogen bases can be
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DNA Replication Deoxyribonucleic acid (DNA) contains the genetic instructions for the biological development of a cellular form of life including some viruses. DNA is an antiparallel double helix molecule with sugar-phosphate backbone on the outer side and nitrogen bases in the inner side. The bases are paired specifically‚ also known as complementary pairing‚ Adenine (A) with Thymine (T)‚ and Guanine (G) with Cytosine (C) by two and three hydrogen bonds‚ respectively. DNA is a long polymer
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Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA? DNA is composed of two polynucleotide strands wound together into a structure known as a double helix. Each nucleotide consists of a sugar base .Nucleotides form together creating a sugar phosphate backbone to each strand. There are three forms of DNA that differ significantly. The most common‚ B form‚ is the structure most people have heard of. It consists of the right
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elements of a computer based information system is the database. A database is a collection of records or information that is stored in a computer in a structured manner so that information can be stored‚ managed‚ and retrieved. Databases are very useful for manipulating large amounts of data and producing reports and documents. This paper takes a look at the Oracle database system and its usage within my organization. The main objective of a database is to help an organization accomplish its goals
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PhyloInformatics 7: 1-66 - 2005 Relational Database Design and Implementation for Biodiversity Informatics Paul J. Morris The Academy of Natural Sciences 1900 Ben Franklin Parkway‚ Philadelphia‚ PA 19103 USA Received: 28 October 2004 - Accepted: 19 January 2005 Abstract The complexity of natural history collection information and similar information within the scope of biodiversity informatics poses significant challenges for effective long term stewardship of that information in electronic
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DNA REPLICATION WHAT IS DNA? DNA is a molecule that has a repeating chain of identical five-carbon sugars (polymers) linked together from head to tail. It is composed of four ring shaped organic bases (nucleotides) which are Adenine (A)‚ Guanine (G)‚ Cytosine (C) and Thymine (T). It has a double helix shape and contains the sugar component deoxyribose. THE PROCESS OF DNA REPLICATION How DNA replicates is quite a simple process. First‚ a DNA molecule is "unzipped". In other words‚ it
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DNA Lab Report SungYong Jang What is DNA? What do the letters stand for? What is it composed of? Where is it found? What is it shaped like? Answer in full sentences. It is the genetic material that can be passed on from parent to offspring DNA --> Deoxyribonucleic acid It composed of Deoxyribose (5 carbon sugar)‚ a phosphate and a Nitrogonous base (the 4 N-bases are Guanine‚ Cytosine‚ Adenine and Thymine) It is a double helix (looks like
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EXPERIMENT NO. 1 AIM: To perform isolation of the genomic DNA from the bacterial cell. REQUIREMENTS: Biological: Bacterial culture (DH5α) Chemical: Solution 1 - 10ml • Glucose (50mM) - 500μl • Tris-Cl (pH 8.0‚ 25mM) - 250μl • EDTA (pH 8.0‚ 10mM) - 200μ Solution 2 • SDS (1%) Phenol: chloroform: isoamylalcohol (25:24:1)‚ Absolute ethanol‚ 70% ethanol‚ Sterile distilled water Apparatus: Micropipettes‚ conical flask‚ measuring
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