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lac Operon - Mediatech, Inc.
lac Operon - Mediatech, Inc.

... An operon is a unit of gene expression and a transcriptionally-regulated system. The lac operon is responsible for producing the proteins that control the uptake of lactose for use as a carbon energy source when glucose is not available to the cell. It consists of three structural genes and a repres ...
Answers to Exam 2 multiple choice and TF questions
Answers to Exam 2 multiple choice and TF questions

... must function in the nucleus where it binds with DNA. d. The mutation in SRY that was described in this paper results in a protein that can perform its transcriptional regulatory function, but which is mis- exported into the mitochondria rather than into the nucleus. 5. Based on chemical structure, ...
CH 16 and 17 PowerPoint
CH 16 and 17 PowerPoint

... vectors that do not contain DNA  employ vector with gene for antibiotic resistance and lac Z’ gene  expose to growth medium ...
AP® BIOLOGY 2009 SCORING GUIDELINES (Form B)
AP® BIOLOGY 2009 SCORING GUIDELINES (Form B)

... 2009 SCORING GUIDELINES (Form B) Question 1 Describe how a plasmid can be genetically modified to include a piece of foreign DNA that alters the phenotype of bacterial cells transformed with the modified plasmid. Describe a procedure to determine which bacterial cells have been successfully transfor ...
Gene Section BLM (Bloom) Atlas of Genetics and Cytogenetics in Oncology and Haematology
Gene Section BLM (Bloom) Atlas of Genetics and Cytogenetics in Oncology and Haematology

... Location: 15q26.1 ...
Comparative Genomic Hybridization for
Comparative Genomic Hybridization for

Flavin adenine dinucleotide as a chromophore of the Xenopus (6
Flavin adenine dinucleotide as a chromophore of the Xenopus (6

Protein Synthesis
Protein Synthesis

... to DNA molecule at the promoter Promoter is a sequence of nucleotides on a DNA molecule where transcription will begin Once RNA polymerase binds to the DNA molecule it will unwind and separate the two complementary DNA strands. ...
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1. ATP powers cellular processes by coupling exergonic and

... the habitat necessary for prokaryotic reproduction the primordial sea the air in which life began volcanic activity which stimulated terrestrial mutations ...
Determination of the DNA and Amino Acid Sequences of the Lactate
Determination of the DNA and Amino Acid Sequences of the Lactate

... Two oligonucleotide primers used to amplify P. falciparum genomic DNA, 5'ATGGCTCCA AAAGCAAAAATCG3' (Eco RI site) and 5'GAGAATGAAGGCATTAGCTTAA 3' (Pst I site), were complementary to the forward-reverse strands of P. falciparum strains of K1 and PF FCBR LDHs. The PCR was carried out in the presence of ...
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... you calculate the transformation efficiency at the end of this experiment. 2. Label one of the pPRL tubes "4-1." Label the other pPRL tube "4-2." Be sure that the labels are readable. Place the tubes in the ice bucket. 3. Label one of the pGRN tubes "4-1." Label the other pGRN tube "4-2." Be sure th ...
7_Nucleic acid - WordPress.com
7_Nucleic acid - WordPress.com

... from one generation to the next is a fundamental condition for life. Thus the nucleic acids are fundamental molecules of biological system. There are two types of nucleic acids, DNA (Deoxyribonucleic acid) and RNA (Ribonucleic acid). The amino acid sequence of every protein in a cell, and the nucleo ...
DNA, Technology, and Florida Strawberries 1 - EDIS
DNA, Technology, and Florida Strawberries 1 - EDIS

... 1. This document is HS1287, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date November 2016. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Seonghee Lee, assistant professor, Department of Horticultural Sciences, UF/IFAS Gulf Coast Resea ...
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The Polymerase Chain Reaction (PCR) provides an extremely

Jeopardy
Jeopardy

... Question: Which of the following is an example of successful transformation? a. Injection of bacterial DNA into plant cells. b. A defective gene in a cell being replaced with a normal gene c. A bacterial cell that expresses the lactase gene in the presence of lactose d. None of the above BACK TO GAM ...
bacterial genetic
bacterial genetic

... biology and genetics, specifically in the area of genetic engineering. • They play a critical role in such procedures as gene cloning, recombinant protein production (e.g., of human insulin), and gene therapy research. • Typically, bacteria contain small DNA circles (plasmids), which range in size f ...
synopsis for research involving the use of infectious agents or
synopsis for research involving the use of infectious agents or

...  Description of organism(s), host(s) and or strain(s) to be used;  Agent or microorganism characteristics (e.g. virulence, pathogenicity, environmental stability);  Source of rDNA, DNA, RNA to be inserted or cloned – include species of organism from which it is derived;  Nature of rDNA, DNA, RNA ...
Some mutations affect a single gene, while others affect an entire
Some mutations affect a single gene, while others affect an entire

... Mutations can be caused by several factors. Mutations happen. But cells have tools to repair them. For example, DNA polymerase has a “proofreading” function to fix errors. However, mutations can happen faster than the body’s repair system can work. Some mutations are the result of errors that happen ...
Slide 2
Slide 2

... acid), molecule that is organized in discrete units called chromosomes. Chromosomes occur in pairs, each member of the pair is inherited from each parent. The process of Meiosis is fundamental to understand how characters are segregated. Every cell of the organism has 2 pairs of each chromosome. How ...
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Chapter07_Outline

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Lecture 4 Genome_Organization
Lecture 4 Genome_Organization

... • Some genes don’t have any introns. Most common example is the histone genes. Histones are the proteins DNA gets wrapped around in the lowest unit of chromosomal organization, the nucleosome. • Some genes are quite huge: dystrophin (associated with Duchenne muscular dystrophy) is 2.4 Mbp and takes ...
Agricultural Biotechnology From DNA to GMOs
Agricultural Biotechnology From DNA to GMOs

... color, while others may be fast runners. In science, we call these differences within a species, natural variation. A species is a group of organisms that can reproduce and have offspring under natural conditions. Since the animals in the photo are all dogs, they belong to the same species. When we ...
Big Idea 3: Chapter Questions
Big Idea 3: Chapter Questions

... radioisotopes of phosphorous and sulfur. Why would using nitrogen instead of sulfur have been a bad idea? How would their results have been different? 6. Once researchers had discovered that DNA is the genetic material in prokaryotes, experiments were carried out to support the idea that this is als ...
Finding Disease Genes
Finding Disease Genes

Mosaic Analysis
Mosaic Analysis

... computer program to be the following: ...
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Molecular cloning



Molecular cloning is a set of experimental methods in molecular biology that are used to assemble recombinant DNA molecules and to direct their replication within host organisms. The use of the word cloning refers to the fact that the method involves the replication of one molecule to produce a population of cells with identical DNA molecules. Molecular cloning generally uses DNA sequences from two different organisms: the species that is the source of the DNA to be cloned, and the species that will serve as the living host for replication of the recombinant DNA. Molecular cloning methods are central to many contemporary areas of modern biology and medicine.In a conventional molecular cloning experiment, the DNA to be cloned is obtained from an organism of interest, then treated with enzymes in the test tube to generate smaller DNA fragments. Subsequently, these fragments are then combined with vector DNA to generate recombinant DNA molecules. The recombinant DNA is then introduced into a host organism (typically an easy-to-grow, benign, laboratory strain of E. coli bacteria). This will generate a population of organisms in which recombinant DNA molecules are replicated along with the host DNA. Because they contain foreign DNA fragments, these are transgenic or genetically modified microorganisms (GMO). This process takes advantage of the fact that a single bacterial cell can be induced to take up and replicate a single recombinant DNA molecule. This single cell can then be expanded exponentially to generate a large amount of bacteria, each of which contain copies of the original recombinant molecule. Thus, both the resulting bacterial population, and the recombinant DNA molecule, are commonly referred to as ""clones"". Strictly speaking, recombinant DNA refers to DNA molecules, while molecular cloning refers to the experimental methods used to assemble them.
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