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Building with DNA: methods and applications
Building with DNA: methods and applications

... -Time consuming (relative to other methods) -Assembling multiple fragments is difficult ...
Section D - Prokaryotic and Eukaryotic Chromosome Structure
Section D - Prokaryotic and Eukaryotic Chromosome Structure

... Transcription of cloned inserts Some cloning vector :The pUC vectors have a promoter (lac) adjacent to the site of insertion of a cloned fragment, such a promoter could be used to transcribe the inserted DNA, either to produce an RNA transcript in vitro (used as a hybridization probe), or to express ...
Document
Document

... F is a self-replicating, circular DNA plasmid (1/40 the size of the main chromosome). ...
Genetics of bacteria and bacteriophages
Genetics of bacteria and bacteriophages

... F is a self-replicating, circular DNA plasmid (1/40 the size of the main chromosome). ...
Honors Biology Chapter 3 – The Process of Science: Studying
Honors Biology Chapter 3 – The Process of Science: Studying

... Concept 13.2: Biologists can Engineer Bacteria to Maek Useful Products (Bacteria “workhorses” used to mass produce useful genes and proteins by modern biotech.) I. Engineering Bacteria: An Introduction A. Plasmid = a small, circular DNA molecule separate from the much larger bacterial chromosome 1. ...
plasmid to transform
plasmid to transform

... to DNA at a specific base sequence and then cuts the DNA. ...
Recombinant DNA Techniques - The University of Oklahoma`s
Recombinant DNA Techniques - The University of Oklahoma`s

... genomic DNA that encodes the information required for growth and replication, but also carry small autonomously replicating circular DNA molecules called plasmids. Although plasmids do not encode genes that are required for normal cell growth, they do contain genes which can give the cell a selectiv ...
chapter 20: dna technology and genomics
chapter 20: dna technology and genomics

... Viruses can also be used to make a library: pieces of foreign DNA can be inserted into the virus’s genome using a restriction enzyme and ligase. This then is packaged in a capsid and allowed to infect cells. So as the virus’ DNA replicates, so does the foreign DNA of interest. ...
Role of MicroRNA Expression in Acute Myeloid Leukemia Victoria
Role of MicroRNA Expression in Acute Myeloid Leukemia Victoria

... in AML, we used a luciferase assay to identify the regions of interaction between miRNA and target genes. Previous studies in our laboratory identified putative gene targets of these miRNA. We created plasmids with the luciferase reporter gene and a 22 base pair insert from the 3’ region of the puta ...
OCR Biology AS and A2 GCE specifications for
OCR Biology AS and A2 GCE specifications for

... Describe, with the aid of diagrams, how the sequence of nucleotides within a gene is used to construct a polypeptide, including the roles of messenger RNA, transfer RNA and ribosomes; Define the term recombinant DNA; Explain that genetic engineering involves the extraction of genes from one organism ...
(r ). - isb
(r ). - isb

... the ability to replicate autonomously in a cell. Plasmids or plasmid-like DNAs have been found in several fungi. It has no known function, but it has major practical applications in the construction of vectors for gene cloning in yeast. Most other plasmids of fungi are found in the mitochondria. ...
11-GeneTech
11-GeneTech

... 7. Suppose that you performed a typical gene cloning experiment, but inserted the DNA fragments into the middle of the ampicillin gene instead of the LacZ’ gene. After allowing the cells to take up the plasmids, they were then plated on the usual media containing ampicillin and X-gal. Which one of t ...
FILLED BY VECTOR CORE PROJECT: RECEIVED: LOT
FILLED BY VECTOR CORE PROJECT: RECEIVED: LOT

... The materials produced by the BCK Virus Vector Laboratory require the following levels of containment: BSL1: plasmids and virus vectors tested free of replication competent virus (upon specific request) BSL2: virus vectors upon standard request if the inserted genetic material does not increase the ...
Plasmid Isolation Using Alkaline Lysis
Plasmid Isolation Using Alkaline Lysis

... The plasmid "miniprep " method is useful for preparing partially purified plasmid DNA in small quantities from a number of transformants. It relies on an alkaline SDS lysis to free the plasmid DNA from the cell, leaving behind the E. coli chromosomal DNA with cell wall debris. The protocol described ...
Chapter 20 DNA Technology
Chapter 20 DNA Technology

... • Can be used to put eukaryotic genes into bacteria • Bacteria don’t process DNA so eukaryotic genes with introns can’t be used directly • Reverse transcriptase enzymes can take n “edited” message and change it into a gene GENE CLONING in BACTERIA •process used to produce multiple copies of specific ...
Natural Selection, Infectious Transfer and the Existence Conditions
Natural Selection, Infectious Transfer and the Existence Conditions

... Despite the near-ubiquity of plasmids in bacterial populations and the profound contribution of infectious gene transfer to the adaptation and evolution of bacteria, the mechanisms responsible for the maintenance of plasmids in bacterial populations are poorly understood. In this article, we address ...
Biologists have learned to manipulate DNA
Biologists have learned to manipulate DNA

... A. Human genome- map of all humans genes was completed by 2000 1. Other organisms sequenced: fruit fly, yeast, E. coli, or rice plant B. Uses 1. Improve food nutrition 2. Help us understand how our genes work from others 13.2 Biologists can engineer bacteria to make useful products I. Engineering ba ...
AP Biology
AP Biology

...  GMO’s and cloned animals and plants can be given beneficial characteristics or make needed products such as ...
Biotechnology - The Bio Edge
Biotechnology - The Bio Edge

... B. Somatic cells are much tougher than gametes and can certainly reduce their exposure to environmental agents that might cause mutations to occur. C. Somatic cells are in the various organs of organisms and are shielded from the harmful agents that might cause mutations. D. Somatic cells are not pa ...
Genetic Variation: Horizontal Gene Transfer
Genetic Variation: Horizontal Gene Transfer

... • The persistence of such common operons in diverse bacteria and archaea has been interpreted within the framework of the selfish operon concept, where the selfish character of these compact genetic elements make them prone to horizontal spread among prokaryotes (Lawrence, 1997, 1999; Lawrence a ...
Lecture PPT - Carol Lee Lab
Lecture PPT - Carol Lee Lab

... even between relatively close species such as Escherichia coli and Haemophilus influenzae (Koonin et al. 1996; Tatusov et al. 1996) • This breakdown in “synteny” (gene order) in prokaryotes is thought to be caused by horizontal gene transfer and also inversions around the origin of replication ...
No Slide Title - Fenn Schoolhouse
No Slide Title - Fenn Schoolhouse

... Small Ring of DNA Found in a Bacteria Cell ...
PPT File
PPT File

... • Conjugation transfers genetic material between two bacterial cells that are temporarily joined. • One cell (“male”) donates DNA and its “mate” (“female”) receives the genes. • A sex pilus from the male initially joins the two cells and creates a cytoplasmic bridge between cells. • “Maleness,” the ...
UNIT 7
UNIT 7

... Module 8.19 A karyotype is a photographic inventory of an individual’s chromosomes. A. Blood samples are cultured for several days under conditions that promote cell division of white blood cells (Figure 8.19). B. The culture is treated with a chemical that stops cell division at metaphase. C. White ...
Folie 1 - Department of Zoology, UBC
Folie 1 - Department of Zoology, UBC

... Generation of transgenic lines containing the respective Tc1 alleles and conversion plasmids; rol-6 and sur-5::GFP as markers. tkr-1 was tested in mut-2 mutator background frm-3 was tested in mut-2 and mut-7 backgrounds 5-10 parent worms  population of ~ 500 – 1,000 worms Isolation of DNA from abou ...
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Plasmid



A plasmid is a small DNA molecule within a cell that is physically separated from a chromosomal DNA and can replicate independently. They are most commonly found in bacteria as small, circular, double-stranded DNA molecules; however, plasmids are sometimes present in archaea and eukaryotic organisms. In nature, plasmids often carry genes that may benefit the survival of the organism, for example antibiotic resistance. While the chromosomes are big and contain all the essential information for living, plasmids usually are very small and contain only additional information. Artificial plasmids are widely used as vectors in molecular cloning, serving to drive the replication of recombinant DNA sequences within host organisms.Plasmids are considered replicons, a unit of DNA capable of replicating autonomously within a suitable host. However, plasmids, like viruses, are not generally classified as life. Plasmids can be transmitted from one bacterium to another (even of another species) via three main mechanisms: transformation, transduction, and conjugation. This host-to-host transfer of genetic material is called horizontal gene transfer, and plasmids can be considered part of the mobilome. Unlike viruses (which encase their genetic material in a protective protein coat called a capsid), plasmids are ""naked"" DNA and do not encode genes necessary to encase the genetic material for transfer to a new host. However, some classes of plasmids encode the conjugative ""sex"" pilus necessary for their own transfer. The size of the plasmid varies from 1 to over 200 kbp, and the number of identical plasmids in a single cell can range anywhere from one to thousands under some circumstances.The relationship between microbes and plasmid DNA is neither parasitic nor mutualistic, because each implies the presence of an independent species living in a detrimental or commensal state with the host organism. Rather, plasmids provide a mechanism for horizontal gene transfer within a population of microbes and typically provide a selective advantage under a given environmental state. Plasmids may carry genes that provide resistance to naturally occurring antibiotics in a competitive environmental niche, or the proteins produced may act as toxins under similar circumstances, or allow the organism to utilize particular organic compounds that would be advantageous when nutrients are scarce.
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