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Gene Cloning
Gene Cloning

... 1) The mixture is heated to 94˚C, at which temperature the hydrogen bonds that hold together the two strands of the double-stranded DNA molecule are broken, causing the molecule to denature. 2) The mixture is cooled down to 50 - 60˚C. the two strands of each molecule could join back together at this ...
Application of Molecular Techniques to Improved Detection of
Application of Molecular Techniques to Improved Detection of

... believed to be caused by a single mutation within a population. Sessile and parthenogenetic insects could be notable exceptions, because they actually may be series of isolated demes within populations. Estimations of polygenic resistance may be inflated by studies with laboratory-selected insects, ...
Virtual Lab
Virtual Lab

Chapter 3 - Cell Protein Production
Chapter 3 - Cell Protein Production

Biotechnology-
Biotechnology-

... • What is a Southern blot vs. a Northern blot? When would you use one vs. the other? • Why is hybridizing important? How does a probe “hybridize”? • What specific sequence must a single stranded probe have in order to identify the GOI? How can one make many copies of the Gene of Interest? What advan ...
Quiz 2 Review Sheet
Quiz 2 Review Sheet

... 80. Identify the four types of lipids discussed in class. Be able to draw each type as we discussed in class. 81. How do unsaturated and saturated fatty acids differ structurally? How does this change how they behave relative to each other? How do trans fats differ from cis fats? Make sure you can d ...
This is a test - DNALC Lab Center
This is a test - DNALC Lab Center

... evolution by creating new mutations and gene combinations. Nobel laureate Barbara McClintock hypothesized that transposable elements provide a mechanism to rapidly reorganize the genome in response to environmental stress. Like Alu, the Ds transposable element discovered in corn by McClintock is a d ...
ProteinSynthesis
ProteinSynthesis

... molecules of life (proteins). • DNA stays in the nucleus, but molecules are built in the cytoplasm of the cell. • So, the code must be copied and moved out into the cytoplasm, where proteins are assembled. • This process is called PROTEIN ...
9 22 mRNA tRNA - cloudfront.net
9 22 mRNA tRNA - cloudfront.net

... How  many  strands  does  RNA  have?   What  is  RNA  made  of?   What  does  the  “m”  in  mRNA  stand  for?   What  4  nucleo;des  (what  leQers)  comprise   mRNA?   •  What  is  the  name  of  the  process  in  which  DNA  is ...
A- DNA
A- DNA

... The temperature at which half the bases in a double- stranded DNA sample have denatured is denoted- Tm (“temperature of melting”). Tm depends on several factors: • The amount of G-C base pairs. Three hydrogen bonds in G-C pairs makes these base pairs more stable than A- T pairs, which have only 2 hy ...
DNA and Gene Expression (chaps 12-15)
DNA and Gene Expression (chaps 12-15)

... molecule to the small subunit of a ribosome and ending generalized with the release of the polypeptide from the ribosome. Include in your answer a discussion of how the different types of RNA function in this process. 3. Describe the operon hypothesis and discuss how it explains the control of messe ...
Transcription and Translation
Transcription and Translation

... mRNA contains the nitrogen bases Cytosine, Guanine, Adenine, and Uracil instead of Thymine. ...
•MOLECULAR CELL BIOLOGY
•MOLECULAR CELL BIOLOGY

... DNA must be contend: human cell has 2 meters DNA!!!!!SO must be highly compacted In eukaryotes, DNA + protein → chromatin → chromosome histone ...
A comparison of DNA quantification values obtained by
A comparison of DNA quantification values obtained by

... There are a range of methods available for the quantification of DNA including absorbance, agarose gel electrophoresis and fluorescent DNAbinding dyes. The traditional method involves measurement of the absorbance of the sample using a UV spectrophotometer. DNA has a maximal absorbance near 260 nm s ...
Biotechnology
Biotechnology

... – Differences in “polymorphic regions” between the genes on the DNA. ...
Molecular Biology
Molecular Biology

... specifically designed for cloning of large DNA fragments (up to 45 kb). They have (i) a drug resistance marker (such as the ampicillin resistance gene), (ii) a plasmid origin of replication (ori), (iii) a fragment carrying the ligated cohesive ends (cos) of phage λ, and (iv) one or more unique restr ...
Ch. 12 end of chapter review
Ch. 12 end of chapter review

... DNA polymerase is an enzyme that joins individual nucleotides to produce a new strand of DNA. Replication in most prokaryotic cells starts from a single point and proceeds in two directions until the entire chromosome is copied. In eukaryotic cells, replication may begin at dozens or even hundreds o ...
cloning vectors
cloning vectors

... packaged in vitro inside a phage coat by the cleavage of two cos sites flanking the insert DNA. The resultant phages are then infected into a suitable E. coli host. (A cosmid molecule alone cannot be packaged because it falls short of the minimum size required for packaging). Inside a cell, two cos ...
Preparation and analysis of environmental DNA: optimisation of
Preparation and analysis of environmental DNA: optimisation of

... amplification can be made by screening numerous compounds in the PCR reaction until successful or more diverse target amplification occurs, which can then be monitored by DGGE. Thus for each new environmental niche a number of suitable chemical additives could be screened to eliminate interference o ...
Aimhigher Monitoring Template
Aimhigher Monitoring Template

... even with the schools who did return their forms, it was clear from the number that not every pupil who took part returned a form. We again tried to make the evaluation return as easy as possible by providing a paid return envelope, but for some schools they clearly had difficulty in reaching the pu ...
Functional Genomics
Functional Genomics

... done more easily in Saccharomyces cerevisiae, Ceanorhabiditis elegans, Drosophila melanogaster etc. due to ease of controlled experimental crosses Not as easy for humans since crosses are harder to obtain and progeny sizes are too small measurements of loci with known phenotypic effect showed interv ...
Polymerase Chain Reaction (PCR) - Department of Environmental
Polymerase Chain Reaction (PCR) - Department of Environmental

... length) that are complementary to DNA sequences that flank the target region of interest. The purpose of PCR primers is to provide a “free” 3’-OH group to which the DNA polymerase can add dNTPs. The C and G nucleotides should be distributed uniformly throughout of the primer and comprise approximate ...
Slide 1
Slide 1

... • Researchers use a clever chemical trick to “read” DNA by determining the order of its bases • A single strand of DNA whose sequence of bases is not known is placed in a test tube • DNA polymerase, the enzyme that copies DNA, and the four nucleotide bases, A, T, G, and C, are added to the test tube ...
Creation/Evolution - Geoscience Research Institute
Creation/Evolution - Geoscience Research Institute

... associated methylases come from? In bacteria, restriction enzymes would be lethal in the absence of the methylase that methylates their recognition site Methylation of specific recognition sites would be pointless in the absence of restriction enzymes Modification and restriction systems appear to b ...
Chromosome - s3.amazonaws.com
Chromosome - s3.amazonaws.com

... Deoxyribonucleic Acid – a nucleic acid (chemical) that carries the genetic code. DNA is the chemical from which chromosomes are composed. Triplet Code Sequence of 3 bases on DNA or ‘triplet’ that codes for a particular amino acid. Gene (s) Genes A section of DNA that contains coded information as a ...
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Replisome



The replisome is a complex molecular machine that carries out replication of DNA. The replisome first unwinds double stranded DNA into two single strands. For each of the resulting single strands, a new complementary sequence of DNA is synthesized. The net result is formation of two new double stranded DNA sequences that are exact copies of the original double stranded DNA sequence.In terms of structure, the replisome is composed of two replicative polymerase complexes, one of which synthesizes the leading strand, while the other synthesizes the lagging strand. The replisome is composed of a number of proteins including helicase, RFC, PCNA, gyrase/topoisomerase, SSB/RPA, primase, DNA polymerase I, RNAse H, and ligase.
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