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PowerPoint 演示文稿
PowerPoint 演示文稿

...  required for re-establishing chromatin structure on a local basis after transcription of a gene or after the repair of a DNA double-strand break;  act during DNA replication when the cellular hitone content is doubled, as these newly synthesized histones are acetylated prior to their deposition o ...
File
File

... •Adenine and Thymine always join together – A & T; T & A •Cytosine and Guanine always join together – C & G; G & C Day Two: The Structure & Function of DNA EQ - What two types of DNA are in animal eukaryotes? What three types are in plant eukaryotes? EQ - What is the relationship between the DNA in ...
DNA: The Genetic Material
DNA: The Genetic Material

... The three-Dimensional Structure of DNA • The work of Rosalind Franklin involved X-ray crystallographic analysis of DNA • This involved bombarding the DNA molecules with beams of X-rays • Rosalind used DNA in the form of fibers in the laboratory of Maurice Wilkins • The work of Rosalind led to the d ...
Results of Exam 1 - Pennsylvania State University
Results of Exam 1 - Pennsylvania State University

Oct. 5
Oct. 5

... c. Termination & migration 2. Translation a. Codons b. tRNA c. Ribosomes ...
Slide 1
Slide 1

DNA: Reading and Coloring The Blueprint of Life DNA
DNA: Reading and Coloring The Blueprint of Life DNA

... which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. Color all the phosphates pink (one is labeled with a "p"). Color all the deoxyriboses blue (one is labeled with a "D"). The rungs of the ladder are pairs of 4 type ...
Visualizing structural variations of single DNA molecules
Visualizing structural variations of single DNA molecules

... proteolysis of metaphase chromosomes directly in the inlet wells of the device (figure 1B). The barcode was obtained by staining the DNA homogeneously with YOYO-1 followed by a thermal partial denaturation of the DNA and renaturation (figure 1C). This creates a stable fluorescence pattern specific t ...
DNA Structure and Replication
DNA Structure and Replication

... 13. What rule is used to join the free nucleotides to the exposed bases of the DNA? 14. This type of replication is called semi-conservative replication. Considering the meaning of these words (semi—half; conserve—to keep), explain why DNA replication is called semi-conservative. ...
Document
Document

... approximately 100 000 genes on the 46 human chromosome Also: the sequence of the 3 million base pairs of DNA in the human genome is being analyzed A. Linkage Map - a genetic map that shows the location of genes on a chromosome 1. study linkage data from human pedigrees - crossing over results in com ...
Restriction Enzymes
Restriction Enzymes

... to 3’ base pair sequence is identical on both strands (the 5’ and 3’ ends refers to the chemical structure of the DNA). ...
Level 3 - rgreenbergscience
Level 3 - rgreenbergscience

... organism, and in which sequence amino acids are needed in order to build all of the different proteins required for the organism’s growth. Structure: All DNA (in humans, snakes, frogs, birds, turtles, insects, etc.) is composed of three parts: a five carbon sugar called deoxyribose, a phosphate grou ...
Micro chpt. 9 notes
Micro chpt. 9 notes

... a. The eukaryotic genome, which is contained within the cell nucleus, is the largest and typically a linear double-stranded DNA divided into separate units, or chromosomes (e.g. human genome is 3 billion base pairs on 23 chromosomes). Replication is by DNA Polymerase. The prokaryotic genome is loose ...
Genetics - Georgia CTAE | Home
Genetics - Georgia CTAE | Home

... 95 degrees C  Annhealing – cool to 35-58 C for primers to bind to complimentary DNA regions ...
Genetics
Genetics

... 95 degrees C  Annhealing – cool to 35-58 C for primers to bind to complimentary DNA regions ...
DNA - The Double Helix Worksheet
DNA - The Double Helix Worksheet

... The DNA helix is actually made of repeating units called nucleotides. Each nucleotide consists of three molecules: a sugar (deoxyribose), a phosphate which links the sugars together, and then one of the four bases. Two of the bases are purines - adenine and guanine. The pyrimidines are thymine and c ...
File
File

BSC 219
BSC 219

DNA and RNA
DNA and RNA

Lab Aseptic Techniques and Classification
Lab Aseptic Techniques and Classification

... The proteins (antigens) are positioned on the filter exactly as they were on the gel. The filter is then washed with patient’s serum followed by anti-human antibodies tagged with an enzyme. The patient antibodies that combine with their specific antigen are visible (shown here in red) when the enzym ...
1 Exam 2 CSS/Hort 430/530 2010 1. The concept of “one gene: one
1 Exam 2 CSS/Hort 430/530 2010 1. The concept of “one gene: one

... to break than the phosphodiester bonds between nucleotides. a. T b. F 14. During the S phase of meiosis, a DNA template is required to initiate replication. a. T b. F 15. In eukaryotes there is only one type of DNA polymerase and it has helicase, replicase, and exonuclease activities. a. T b. F ...
WELCOME TO BIOLOGY 2002 - University of Indianapolis
WELCOME TO BIOLOGY 2002 - University of Indianapolis

Week4 Lab Lecture
Week4 Lab Lecture

... depends on having the correct ratios of vector (Plasmid) to insert (chromosomal digest) About 3 insert to 1 vector works best – We know the amount of DNA in the digest but how many fragments are there? ...
DNA Fingerprinting Lab
DNA Fingerprinting Lab

... One test used in forensic labs is DNA fingerprint. It is also called a DNA profile. Analysts use the DNA profile from potential suspects and compare it against DNA found at a crime scene. There’s DNA profiling for paternity tests. These days you can send a sample of DNA and find out your ancestry to ...
Horak - Blumberg Lab
Horak - Blumberg Lab

... must be present to activate a certain phase of the cell cycle Regulation of cyclin concentration is called cell cycle regulation (dark blue category) http://mol-biol4masters.masters.grkraj.org/html/Cell_Cycle_And_Its_Regulation.htm ...
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DNA repair



DNA repair is a collection of processes by which a cell identifies and corrects damage to the DNA molecules that encode its genome. In human cells, both normal metabolic activities and environmental factors such as UV light and radiation can cause DNA damage, resulting in as many as 1 million individual molecular lesions per cell per day. Many of these lesions cause structural damage to the DNA molecule and can alter or eliminate the cell's ability to transcribe the gene that the affected DNA encodes. Other lesions induce potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, the DNA repair process is constantly active as it responds to damage in the DNA structure. When normal repair processes fail, and when cellular apoptosis does not occur, irreparable DNA damage may occur, including double-strand breaks and DNA crosslinkages (interstrand crosslinks or ICLs).The rate of DNA repair is dependent on many factors, including the cell type, the age of the cell, and the extracellular environment. A cell that has accumulated a large amount of DNA damage, or one that no longer effectively repairs damage incurred to its DNA, can enter one of three possible states: an irreversible state of dormancy, known as senescence cell suicide, also known as apoptosis or programmed cell death unregulated cell division, which can lead to the formation of a tumor that is cancerousThe DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
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