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Physical Mapping I
Physical Mapping I

... the human genome with one marker every 10 million nucleotides  RFLP based on variability of certain nucleotides between different people  These cause restriction fragments of different lengths to be produced ...
Protein Synthesis A gene is a segment of DNA that is located on a
Protein Synthesis A gene is a segment of DNA that is located on a

... Cells have three major types of RNA. Each plays a different role in protein synthesis. 1. messenger RNA (mRNA)- a single stranded molecule that carries the instructions from a gene to make a protein. It carries the genetic message from DNA to the ribosomes. 2. ribosomal RNA (rRNA)- It is part of the ...
GHSGT Ecology/Genetics Review (EcoGenReview)
GHSGT Ecology/Genetics Review (EcoGenReview)

... C. There is a segregation of dominant and recessive genes. D. There is an integration of dominant and recessive genes. 13. How does the production of sperm and egg cells differ? A. Each meiotic division produces four sperm cells and one egg cell. Sperm are motile while the egg can not move on its o ...
MUTATIONS
MUTATIONS

... wrong base pairing, e.g. A with G.  The repair enzymes go to work, cutting out a chunk from one side of the DNA containing the mistake. Then new enzymes, using the base pairing code, make a new side from the opposite strand of DNA.  The new strand is put into place by another enzyme system. ...
DNA the Crown Jewels 2012
DNA the Crown Jewels 2012

... • STRs make up 10-15% of the mammalian genome • STRs are also called “microsatellites” • STRs are “junk DNA” • STRs are more stable than VNTRs because they ...
Brooker Chapter 19
Brooker Chapter 19

... The amplified STRs are fluorescently labeled They are separated by gel electrophoresis A laser excites the fluorescent molecule within the STR A detector records the amount of emission for each STR Copyright ©The McGraw-Hill Companies, Inc. Permission required for reproduction or display ...
Damage Control: The Pleiotropy of DNA Repair Genes
Damage Control: The Pleiotropy of DNA Repair Genes

... cells. This result has been confirmed and extended to cells in the eye imaginal disc (M. Brodsky and G. M. Rubin, personal communication). Thus the function of the MEI-41 protein may not be in the repair of damage per se, but in triggering a DNA damage-dependent cellcycle checkpoint. Activation of t ...
Lesson 3
Lesson 3

... the cell suspension is dispensed into each plastic cryovial or glass ampoule. • They are tightly closed, clamped onto labeled aluminum canes, and placed at -30°C for about 1 h or for a few minutes in the gas phase of liquid nitrogen to achieve a freezing rate of about 1°C/min. • The canes are then p ...
table of contents - The Critical Thinking Co.
table of contents - The Critical Thinking Co.

... information to the next generation of cells. 5This transfer takes place when the male cell joins with the female cell during reproduction. 6When these cells join, they create a single cell that has two sets of chromosomes. 7Humans have 2 complete sets of 23 chromosomes (2 X 23 = 46), one set from ea ...
Oc - TUM
Oc - TUM

... this regulatory factors determine the level of transcription by regulating the binding of RNA pol II to the promoter of a gene ...
Biochemical and genetic characterization of the
Biochemical and genetic characterization of the

... The Saccharomyces cerevisiae CDC9 gene, which encodes a DNA ligase, was initially identified in a screen for conditional lethal cell division cycle mutants (15). Subsequently, it was demonstrated that cdc9 mutants exhibit hypersensitivity to a wide range of DNA damaging agents and hyper-recombinatio ...
L14 Gene to Protein Fa08
L14 Gene to Protein Fa08

... • Results in mRNA (messenger RNA) which then leaves the nucleus ...
Computationally Inspired Biotechnologies
Computationally Inspired Biotechnologies

... – Extend associative search queries to Boolean formula conditionals (with a bounded number of Boolean variables), by combining our methods for DNA associative search with known BMC methods for solving the SAT problem. – Example: extended queries executed on: • Natural DNA strands (from blood or othe ...
Lecture 20
Lecture 20

... Summary of RNA Transcription Mechanism 1) Transcription begins when the enzyme RNA polymerase binds to DNA at a promoter region. 2) The enzyme separates the DNA strands by breaking the hydrogen bonds, and then uses one strand of DNA as a template from which nucleotides are assembled into a strand o ...
TRANSCRIPTION-TRANSLATION PROTEIN SYNTHESIS
TRANSCRIPTION-TRANSLATION PROTEIN SYNTHESIS

... gly ...
Protein Synthesis
Protein Synthesis

... – If DNA could exit nucleus to meet with ribosomes, it would need an exiting and reentry method for passing through the nuclear membrane. – How could the DNA make preparations for a second type of protein if it were already preoccupied with a protein already? • To solve all of these problems, the pr ...
Structure of Macromolecules Dr. Nakhshab
Structure of Macromolecules Dr. Nakhshab

... The phosphate functional group has a negative electric charge, so this portion of the molecule is hydrophilic, attracting polar water molecules. But the two fatty acids are hydrophobic, so they tend to aggregate away ...
Practical database searching
Practical database searching

... One might also wish to search DNA databases at the protein level. Programs can do so automatically by first translating the DNA in all six reading frames and then making comparisons with each of these conceptual translations. The nr DNA database, which contains most known DNA sequences except GSSs, ...
Build-a-Bug - Wando High School
Build-a-Bug - Wando High School

... 4. Using the polypeptide chain made by the DNA of your bug, determine the particular coded traits your bug will express. Use the provided key to do this and write the trait on Table 1. 5. Construct your bug using the provided supplies and your creativity!! ...
Supplementary Protocol for Manual, High
Supplementary Protocol for Manual, High

rAPid Alkaline Phosphatase - Sigma
rAPid Alkaline Phosphatase - Sigma

Build-a-Bug - Wando High School
Build-a-Bug - Wando High School

... 4. Using the polypeptide chain made by the DNA of your bug, determine the particular coded traits your bug will express. Use the provided key to do this and write the trait on Table 1. 5. Construct your bug using the provided supplies and your creativity!! ...
Genetic Mapping with CAPS Markers
Genetic Mapping with CAPS Markers

... phenotype) consists basically of testing the linkage with a number of previously mapped genes or “markers” that also provide a phenotype. Genetic maps are constructed based on the principle that the frequency of recombination between genes decreases as the distance between them decreases. The freque ...
A2.1.4.GeneticTesting
A2.1.4.GeneticTesting

Fernanda Appleton Biology 1615 Research Paper:” The Oxytricha
Fernanda Appleton Biology 1615 Research Paper:” The Oxytricha

... and rarely conjugates the result is meiotic recombination. Conjugation in the laboratory is induced by starvation as long as cells of compatible mating types are available, but the Scientists do not know if this also can occur in a natural environment. Oxytricha trifallax strain JRB310 was cultured ...
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Cre-Lox recombination



In the field of genetics, Cre-Lox recombination is known as a site-specific recombinase technology, and is widely used to carry out deletions, insertions, translocations and inversions at specific sites in the DNA of cells. It allows the DNA modification to be targeted to a specific cell type or be triggered by a specific external stimulus. It is implemented both in eukaryotic and prokaryotic systems.The system consists of a single enzyme, Cre recombinase, that recombines a pair of short target sequences called the Lox sequences. This system can be implemented without inserting any extra supporting proteins or sequences. The Cre enzyme and the original Lox site called the LoxP sequence are derived from bacteriophage P1.Placing Lox sequences appropriately allows genes to be activated, repressed, or exchanged for other genes. At a DNA level many types of manipulations can be carried out. The activity of the Cre enzyme can be controlled so that it is expressed in a particular cell type or triggered by an external stimulus like a chemical signal or a heat shock. These targeted DNA changes are useful in cell lineage tracing and when mutants are lethal if expressed globally.The Cre-Lox system is very similar in action and in usage to the FLP-FRT recombination system.
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