USMLE Step 1 Web Prep — Medically Important Viruses, Part 1
... **Poxviruses have a virion-associated transcriptase (DNA dependent RNA polymerase) so it can transcribe its own DNA in the cytoplasm and make all of the enzymes and factors necessary for replication of the Poxvirus DNA in the cytoplasm. ***Hepadnaviruses - DNA viruses that carry a DNA polymerase wit ...
... **Poxviruses have a virion-associated transcriptase (DNA dependent RNA polymerase) so it can transcribe its own DNA in the cytoplasm and make all of the enzymes and factors necessary for replication of the Poxvirus DNA in the cytoplasm. ***Hepadnaviruses - DNA viruses that carry a DNA polymerase wit ...
Name - OG
... 12.2 DNA Structure 1. What does DNA stand for? 2. What are the repeating subunits called that make up DNA? 3. Sketch and label the 3 parts of a DNA nucleotide. 4. Name the 4 nitrogen bases on DNA (spelled out – spelling counts on the test). 5. What scientists made the first ever model of DNA as a ...
... 12.2 DNA Structure 1. What does DNA stand for? 2. What are the repeating subunits called that make up DNA? 3. Sketch and label the 3 parts of a DNA nucleotide. 4. Name the 4 nitrogen bases on DNA (spelled out – spelling counts on the test). 5. What scientists made the first ever model of DNA as a ...
AP Biology - HPHSAPBIO
... forks and explain the role of DNA polymerase. 6. Define "antiparallel" and explain why continuous synthesis of both DNA strands is not possible. 7. Distinguish between the leading strand and the lagging strand. 8. Explain how the lagging strand is synthesized even though DNA polymerase can add nucle ...
... forks and explain the role of DNA polymerase. 6. Define "antiparallel" and explain why continuous synthesis of both DNA strands is not possible. 7. Distinguish between the leading strand and the lagging strand. 8. Explain how the lagging strand is synthesized even though DNA polymerase can add nucle ...
7 - DNA.notebook
... * RNA does not have Thymine - The nitrogen base Uracil replaces where Thymine should be in DNA ...
... * RNA does not have Thymine - The nitrogen base Uracil replaces where Thymine should be in DNA ...
Chapter 11 Jeopardy Review
... Which of the following nucleotide pairs would be found in a DNA molecule? ...
... Which of the following nucleotide pairs would be found in a DNA molecule? ...
The Central Dogma of Biology DNA → RNA→ Protein
... - a molecule of DNA has 2 strands held together by hydrogen bonds (hydrogen bonds are very weak chemical bonds but many of them all together have enough strength to keep the 2 strands together). - the 2 strands are curved around themselves in a double helix - the DNA strands can be pulled apart with ...
... - a molecule of DNA has 2 strands held together by hydrogen bonds (hydrogen bonds are very weak chemical bonds but many of them all together have enough strength to keep the 2 strands together). - the 2 strands are curved around themselves in a double helix - the DNA strands can be pulled apart with ...
Unit 7: DNA and Protein Synthesis Summary Sheet
... molecules back up again, making new nucleotides and creating a new ladder side for each of the old strands that came apart. Each new strand of DNA now has half of the old strand that came apart and half of a new strand that was just created. At the end of replication, there are 2 new identical stran ...
... molecules back up again, making new nucleotides and creating a new ladder side for each of the old strands that came apart. Each new strand of DNA now has half of the old strand that came apart and half of a new strand that was just created. At the end of replication, there are 2 new identical stran ...
4-Biochemical Properties of DNA and The Technology involve them
... is the result of an end to end fusion of two ancestral chromosomes. •As a result the two subtelomeric ends became the middle of chromosome 2, which is why we get hybridization of the probe there ...
... is the result of an end to end fusion of two ancestral chromosomes. •As a result the two subtelomeric ends became the middle of chromosome 2, which is why we get hybridization of the probe there ...
Daily TAKS Connection: DNA
... Cut tabs from edge to center along dotted lines Color each flap a different color ...
... Cut tabs from edge to center along dotted lines Color each flap a different color ...
BLOOM HELICASE (and BLOOM SYNDROME)
... Many types of mutations can occur: missense, frameshift, nonsense, splice-site, etc.. Most common mutation is delATCTGA/insTAGATTC @ position 2281 which is known as a blmAsh mutation ...
... Many types of mutations can occur: missense, frameshift, nonsense, splice-site, etc.. Most common mutation is delATCTGA/insTAGATTC @ position 2281 which is known as a blmAsh mutation ...
The History of DNA
... • Mice were injected with either R(rough) strain of Streptococcus pneumoniae. The mice live and their immune system kills R bacteria. No live bacteria • Mice injected with the S (smooth) strain of Streptococcus pneumoniae. The mice die. The dead mice have live S bacteria. • Mice injected with heat-k ...
... • Mice were injected with either R(rough) strain of Streptococcus pneumoniae. The mice live and their immune system kills R bacteria. No live bacteria • Mice injected with the S (smooth) strain of Streptococcus pneumoniae. The mice die. The dead mice have live S bacteria. • Mice injected with heat-k ...
4.1, 4.2 DNA structure – Watson and Crick Model
... molecule called the genes. Only some parts of a DNA molecule form genes. These regions contain the genetic code and are separated by non-coding DNA. The Shape of DNA ...
... molecule called the genes. Only some parts of a DNA molecule form genes. These regions contain the genetic code and are separated by non-coding DNA. The Shape of DNA ...
DNA - The Stuff of Life
... 1- Who is Watson & Crick? What did they discover? 2- What is DNA? Where is it found? What does it stand for? 3-What makes up DNA? What does it look like? 4-What would be the complement DNA strand to the following: ATTCGGCTA 5-What would a complement RNA strand look like for the following: ACGAAGCAA ...
... 1- Who is Watson & Crick? What did they discover? 2- What is DNA? Where is it found? What does it stand for? 3-What makes up DNA? What does it look like? 4-What would be the complement DNA strand to the following: ATTCGGCTA 5-What would a complement RNA strand look like for the following: ACGAAGCAA ...
Homologous chromosome
... If a normal gamete fertilizes a gamete with nondisjunction, the fertilized egg will have either one more or one less copy of an autosomal or gonosomal chromosome. ...
... If a normal gamete fertilizes a gamete with nondisjunction, the fertilized egg will have either one more or one less copy of an autosomal or gonosomal chromosome. ...
Name
... 1.) Where would you find this model if it were in a eukaryotic cell? ___________________________________ 2.) Should your model under DNA replication: a.) How many molecules of DNA will be produced ___________________________________ b.) What will the strands of DNA look like? _______________________ ...
... 1.) Where would you find this model if it were in a eukaryotic cell? ___________________________________ 2.) Should your model under DNA replication: a.) How many molecules of DNA will be produced ___________________________________ b.) What will the strands of DNA look like? _______________________ ...
Apple Molecular Biology: Animation 1
... types to understand what genes are responsible for activities in certain regions of a plant. Nucleic acids and proteins taken from these tissues are studied using the methods mentioned above. By sampling the same tissue types at various intervals, a gene profile can be established. The study of thes ...
... types to understand what genes are responsible for activities in certain regions of a plant. Nucleic acids and proteins taken from these tissues are studied using the methods mentioned above. By sampling the same tissue types at various intervals, a gene profile can be established. The study of thes ...
File
... molecule: adenine (white Rod), thymine (black Rod), cytosine (teal Rod), and guanine (silver Rod). These nitrogen-containing bases pair in a very specific way to form the individual rungs of the ladder. Adenine always pairs with thymine, and cytosine always pairs with guanine. These pairs, adenine b ...
... molecule: adenine (white Rod), thymine (black Rod), cytosine (teal Rod), and guanine (silver Rod). These nitrogen-containing bases pair in a very specific way to form the individual rungs of the ladder. Adenine always pairs with thymine, and cytosine always pairs with guanine. These pairs, adenine b ...
Notes
... • Separates segments of DNA based on length. • Electric current applied to gelatin in tray one end of gel is positive and other is negative • Cut up DNA is added to negative end and DNA (which is negative) moves to positive end • Smaller DNA pieces move faster than larger ones • Dye is used and ap ...
... • Separates segments of DNA based on length. • Electric current applied to gelatin in tray one end of gel is positive and other is negative • Cut up DNA is added to negative end and DNA (which is negative) moves to positive end • Smaller DNA pieces move faster than larger ones • Dye is used and ap ...
Biomarkery a mechanismy toxicity
... : variability in genoms; reparations - chemical-induced mutagenesis ...
... : variability in genoms; reparations - chemical-induced mutagenesis ...
Chapter 3,
... complementary to mRNA for a particular yeast protein, they find that the probe does not attach to any portion of the yeast’s genome. Explain why the students’ probe does not work. The cDNA probe sequence spans a splice junction in the mRNA, therefore there is no sequence in the genome that correspon ...
... complementary to mRNA for a particular yeast protein, they find that the probe does not attach to any portion of the yeast’s genome. Explain why the students’ probe does not work. The cDNA probe sequence spans a splice junction in the mRNA, therefore there is no sequence in the genome that correspon ...
Name
... nucleotides in its structure. 5. RNA molecules have _sugar/phosphate (ribose) backbone. 6. DNA uses the sugar _deoxyribose___________ 7. DNA uses the nitrogenous bases adenine, thymine, guanine and cytosine__________ 8. One DNA molecule can include _4________ different nucleotides in its structure. ...
... nucleotides in its structure. 5. RNA molecules have _sugar/phosphate (ribose) backbone. 6. DNA uses the sugar _deoxyribose___________ 7. DNA uses the nitrogenous bases adenine, thymine, guanine and cytosine__________ 8. One DNA molecule can include _4________ different nucleotides in its structure. ...
DNA History, Structure, Packaging PPT
... The History of DNA • Alfred Hershey and Martha Chase - 1952 – radioactive isotope tracer experiment – bacterial virus (bacteriophage T2) infects a host cell ( bacterium Escherichia coli) – found that T2 virus DNA, not its protein coat, enters the host cell – genetic information for replication of t ...
... The History of DNA • Alfred Hershey and Martha Chase - 1952 – radioactive isotope tracer experiment – bacterial virus (bacteriophage T2) infects a host cell ( bacterium Escherichia coli) – found that T2 virus DNA, not its protein coat, enters the host cell – genetic information for replication of t ...
Homologous recombination
Homologous recombination is a type of genetic recombination in which nucleotide sequences are exchanged between two similar or identical molecules of DNA. It is most widely used by cells to accurately repair harmful breaks that occur on both strands of DNA, known as double-strand breaks. Homologous recombination also produces new combinations of DNA sequences during meiosis, the process by which eukaryotes make gamete cells, like sperm and egg cells in animals. These new combinations of DNA represent genetic variation in offspring, which in turn enables populations to adapt during the course of evolution. Homologous recombination is also used in horizontal gene transfer to exchange genetic material between different strains and species of bacteria and viruses.Although homologous recombination varies widely among different organisms and cell types, most forms involve the same basic steps. After a double-strand break occurs, sections of DNA around the 5' ends of the break are cut away in a process called resection. In the strand invasion step that follows, an overhanging 3' end of the broken DNA molecule then ""invades"" a similar or identical DNA molecule that is not broken. After strand invasion, the further sequence of events may follow either of two main pathways discussed below (see Models); the DSBR (double-strand break repair) pathway or the SDSA (synthesis-dependent strand annealing) pathway. Homologous recombination that occurs during DNA repair tends to result in non-crossover products, in effect restoring the damaged DNA molecule as it existed before the double-strand break.Homologous recombination is conserved across all three domains of life as well as viruses, suggesting that it is a nearly universal biological mechanism. The discovery of genes for homologous recombination in protists—a diverse group of eukaryotic microorganisms—has been interpreted as evidence that meiosis emerged early in the evolution of eukaryotes. Since their dysfunction has been strongly associated with increased susceptibility to several types of cancer, the proteins that facilitate homologous recombination are topics of active research. Homologous recombination is also used in gene targeting, a technique for introducing genetic changes into target organisms. For their development of this technique, Mario Capecchi, Martin Evans and Oliver Smithies were awarded the 2007 Nobel Prize for Physiology or Medicine.