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DNA - Northwest ISD Moodle
DNA - Northwest ISD Moodle

... Not only does DNA contain complementary base pairs, but it is also anti-parallel! Remember how the sugar is 5 carbon, and each carbon is numbered? Since only phosphates can attach to either the 5’ or 3’ carbons, and only bases can attach to the 1’ carbon, the two strands of DNA must run in opposite ...
The Human Artificial Chromosome
The Human Artificial Chromosome

... loop, and HIV cannot bind (16). This system, however, affects macrophages. Once HIV establishes itself, it can switch tropism and kill T-cells, causing AIDS (15). Although patients with the CCR5 deletion have not progressed to AIDS, they do not show 100 percent resistance (15). If a natural mutation ...
ANSWER KEY FOR PROBLEM SET #1
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... Affairs” in the early years. ...
Table 1 – DNA, mRNA, Amino Acid Sequences
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... Using the following four codons, answer these questions. TAC GGT AAC CAT 3. What is the mRNA transcript sequence? 4. What is the complementary DNA strand sequence? 5. If the 3rd DNA base is deleted, what is the new mRNA sequence? 6. If the base adenine is inserted in the 7th position on the DNA stra ...
Gene duplication
Gene duplication

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Topic 1

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DNA damage and repair
DNA damage and repair

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DNA Technology - De Anza College
DNA Technology - De Anza College

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3. - Haverford Alchemy
3. - Haverford Alchemy

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... All four of the histones that make up the core of the nucleosome are relatively small proteins (102-135 amino acids), and they share a structural motif, known as the histone fold, formed from three alpha helices connected by two loops. ...
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... Finding the Structure: pieces of the puzzle Background James Watson and Francis Crick are given credit for developing the three-dimensional structural model of DNA used today. However, they were not the first to ask the question, “How is hereditary information carried from one generation to the next ...
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... This has been done by crossing "Mauriceville" to an "Oak Ridge" strain that is suitably marked (e.g., in LG VI with chol-2,ylo-1, trp-2), scoring for the linked molecular marker (5S gene 50), and then mapping the 5S gene 50 into the original cross. A marker from the right arm of LG III, 5S gene 45, ...
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... Name the three different types of RNA. Name the scientists credited with discovering the structure of DNA? What is meant by complementary? Give the two complementary base pairs. What is meant by antiparallel? What is meant by the “Semi-conservative Hypothesis”? ...
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... 1. (2 pts) Promoters for protein-coding genes in eukaryotic cells contain a basal promoter element that is recognized by RNA polymerase II and a collection of basal transcription factors (e.g., TFIID, TFIIB). However, the basal activity of the promoter by itself is very low and is invariably influen ...
Student Activity PDF - TI Education
Student Activity PDF - TI Education

... and guanine (G). Before the structure of DNA was known, Erwin Chargaff, an Austrian professor at Columbia University, made two essential observations about the bases which helped lay the groundwork for others to solve the double-helical structure of DNA. The first of Chargaff's rules was that in ANY ...
DNA RNA PS PPT
DNA RNA PS PPT

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Stem Cells, Cancer, and Human Health
Stem Cells, Cancer, and Human Health

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Genetics and Genomics in Medicine Chapter 7 Questions Multiple
Genetics and Genomics in Medicine Chapter 7 Questions Multiple

... donor site located within an exon ii) a cryptic splice acceptor site within an intron? ...
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IN HUMAN EVOLUTION

... Europe. But Pääbo and his colleagues ultiing layers of complexity to the story of how that his visit was of “no value to the people mately managed to create a composite geancient populations migrated and mixed of Czechoslovakia.” In Rome, thieves stole nome from three female Neandertals and across t ...
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Helitron (biology)

A helitron is a transposon found in eukaryotes that is thought to replicate by a so-called ""rolling-circle"" mechanism. This category of transposons was discovered by Vladimir Kapitonov and Jerzy Jurka in 2001. The rolling-circle process begins with a break being made at the terminus of a single strand of the helitron DNA. Transposase then sits at this break and at another break where the helitron targets as a migration site. The strand is then displaced from its original location at the site of the break and attached to the target break, forming a circlular heteroduplex. This heteroduplex is then resolved into a flat piece of DNA via replication. During the rolling-circle process, DNA can be replicated beyond the initial helitron sequence, resulting in the flanking regions of DNA being ""captured"" by the helitron as it moves to a new location.
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