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7.13 Experimental Microbial Genetics
7.13 Experimental Microbial Genetics

... Agarose gel electrophoresis is a simple and highly effective method for separating, identifying, and purifying 0.5 to 25 kb DNA fragments. Voltage applied at the ends of an agarose gel generates an electric field with a strength defined by the length of the gel and the potential difference at the en ...
Genetics Packet 2017
Genetics Packet 2017

... from single cells or to produce healthy cells that can replace damaged cells in degenerative diseases such as Alzheimer’s or Parkinson’s. This technology still needs to be developed before it can become a realistic option for treatment of disorders. As with most new medical advances there are risks. ...
Structure of the human DNA repair gene HAP1 and its localisation to
Structure of the human DNA repair gene HAP1 and its localisation to

... principally because the gene contains only four introns of which three are less than 220 bp in length. One of these introns lies within the 5' non-coding region and thus the ATG initiation codon is located within the second exon. Amino terminal amino acid sequencing indicated that the proposed ATG i ...
Table II Transformation of various derived strains OSU  Strain Outcrossed with
Table II Transformation of various derived strains OSU Strain Outcrossed with

... in: Genetic Engineering of Microorganisms for Chemicals, eds. Hollaender et al. pp. 87-100 Plenum, New York) with slight modifications. Two inl+ transformants (Tl and T3) were obtained. They were back-crossed to an inl (89601) strain and several inl+ ascospores from the F1 progeny were selected for ...
Lesson Plan
Lesson Plan

... A. A cell is a basic unit of life containing living material bound by a membrane. The cell also contains genetic material. 1. Within each cell there is a nucleus that contains genetic material. 2. The long molecule that carries the genetic material is DNA or deoxyribonucleic acid. 3. The DNA is orga ...
GENERAL PATHOLOGY Genetic disorders: Introduction: DNA
GENERAL PATHOLOGY Genetic disorders: Introduction: DNA

... DNA guides the cell (along with RNA) in making new proteins that determine all of our biological traits, and gets passed (copied) from one generation to the next The key to all of these functions is found in the molecular structure of DNA, Although it may look complicated, the DNA in a cell is reall ...
DNA
DNA

... Objective: Describe the structure for units of DNA.  ___DNA___ is a _polymer_ made of _repeating_ subunits called _nucleotides_ (the monomer).  _Nucleotides_ have three parts: a simple __sugar__, a _phosphate_ __group__, and a _nitrogenous_ ___base___.  In DNA there are ___four___ possible _nucle ...
DNA Transcription and Translation - MrsGorukhomework
DNA Transcription and Translation - MrsGorukhomework

... into a cloverleaf shape with a 3 and a 5 end. The 3 end is the amino acid attachment and it has the code of CCA. (or ACC) See Campbell page 305. Great pictures. Each amino acid has a specific tRNA-activating enzyme that attaches the amino acid to its tRNA. Note, some amino acids have more than one t ...
Gene Expression
Gene Expression

... • A “gene” is a segment of DNA that codes for a specific protein. • Only one side of the DNA double-helix (the “sense” or “coding” strand) contains the actual gene. • Genes are defined by promotor and terminator sequences in the DNA. ...
Part B - Modeling Transcription: How is RNA modified? Name:
Part B - Modeling Transcription: How is RNA modified? Name:

... The  most  remarkable  stage  of  RNA  processing  in  the  eukaryotic  nucleus  is  the  removal  of  a  large  portion  of  the  RNA  molecule  that  is  initially  synthesized‐‐a  cut‐and‐paste  job  called  RNA  splicing.  The  average  length  of  a  transcription  unit  along  a  eukaryotic DN ...
Student Guide
Student Guide

... agarose harden, which should take about 10 minutes. Don’t touch/move your gel until it’s hard. Why not? 3. When the agarose gel is hard, take out the stoppers and gently remove the comb. Label which samples will be placed into which wells before you add DNA to the gel. ...
coding region of DNA. o Introns – non
coding region of DNA. o Introns – non

... o Repressors present in some regions and absent in others. Elongation (step 2 of transcription). o RNA polymerase breaks interactions with transcription factors and escapes the promoter region to start elongation. o RNA polymerase moves along the DNA template strand and adds bases in the 5’ to 3’ di ...
Exam #3 Part of Ch. 13, Ch.14-17 and Ch. 20 Supplement to notes
Exam #3 Part of Ch. 13, Ch.14-17 and Ch. 20 Supplement to notes

... Remember that your notes are the best study guide! Some points to consider for the upcoming test: Ch. 13- What is a tetrad, when does it occur and why is it important for increasing variation in offspring? Ch. 14- Describe how Mendel used the scientific approach to identify the two laws of inheritan ...
Chapter 26 - RNA Metabolism
Chapter 26 - RNA Metabolism

... • DNA is continuously unwound as RNA pol catalyzes a processive elongation of RNA chain (about 17 bp at a time) transcription bubble • Mechanism of elongation reaction almost identical to that for DNA polymerase • Incoming ribonucleotide triphosphates (RTPs) form correct H bonds to template • New ph ...
PPT File
PPT File

... DNA methylation in human sperm samples  phenotypic differences in the next generation • Sperm samples from oligospermic patients: often contain DNA-methylation defects at imprinted loci ...
ods of time, until activated b), a activated, the I`irtrl DNA hiiacks the
ods of time, until activated b), a activated, the I`irtrl DNA hiiacks the

Slide 1 - Montville.net
Slide 1 - Montville.net

... recombinant plasmid, a plasmid with a new gene inserted. The plasmid will contain DNA from two different organisms. You will use colored paper, scissors and tape to do this. If you are successful, you will have a two colored paper ring and extra pieces of paper. ...
Chapter 7 Clusters and Repeats
Chapter 7 Clusters and Repeats

... Figure 07.10: The nontranscribed spacer of X. laevis rDNA has an internally repetitious structure that is responsible for its variation in length. ...
Lecture 11-Chap07
Lecture 11-Chap07

... Figure 07.10: The nontranscribed spacer of X. laevis rDNA has an internally repetitious structure that is responsible for its variation in length. ...
BI:4224
BI:4224

... 2. (Prophase) The DNA molecules progressively shorten and condense by coiling, to form chromosomes. The nuclear membrane and nucleolus are no longer visible. The spindle apparatus has migrated to opposite poles of the cell. 3. (Metaphase) The spindle fibers attach themselves to the centromeres of th ...
Plasmid Project due
Plasmid Project due

... is where the human insulin gene was isolated from human DNA, and was then inserted into a bacterium, using a plasmid as a vector (see next paragraph) – the bacterium could then produce the human form of insulin. A plasmid is a circlet of DNA found in a bacterium. Plasmids are unique to bacteria and ...
Modeling Plasmid Selection - Biology2020
Modeling Plasmid Selection - Biology2020

... • (Or just draw this chromosome in on paper) ...
Simulation of Gene Splicing (Genetic Engineering
Simulation of Gene Splicing (Genetic Engineering

... week to get shots and that these seemed to be helping because now the difference in height between her and her peers was not nearly so great now as it had been when she was a little kid. In fact, Julie seemed pretty normal for a 10-yearold, Terry thought. Sure, she was a girl and sometimes a pest. B ...
Chapter 9 Slide PDF
Chapter 9 Slide PDF

... (b) The polymerase begins to move along the DNA and unwind it. As it does, it links RNA nucleotides into a strand of RNA in the order specified by the base sequence of the DNA (elongation). The DNA double helix rewinds after the polymerase passes. The structure of the “opened” DNA molecule at the tr ...
A Recipe for Traits - Teach Genetics Website
A Recipe for Traits - Teach Genetics Website

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Nucleic acid double helix



In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical structure of a nucleic acid complex arises as a consequence of its secondary structure, and is a fundamental component in determining its tertiary structure. The term entered popular culture with the publication in 1968 of The Double Helix: A Personal Account of the Discovery of the Structure of DNA, by James Watson.The DNA double helix polymer of nucleic acids, held together by nucleotides which base pair together. In B-DNA, the most common double helical structure, the double helix is right-handed with about 10–10.5 base pairs per turn. This translates into about 20-21 nucleotides per turn. The double helix structure of DNA contains a major groove and minor groove. In B-DNA the major groove is wider than the minor groove. Given the difference in widths of the major groove and minor groove, many proteins which bind to B-DNA do so through the wider major groove.
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