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Biology 1710 - DFW Web Presence
Biology 1710 - DFW Web Presence

... 43. The enzyme that eliminates primers during DNA replication is: a. DNA polymerase I. b. primase. c. DNA polymerase III. d. helicase. e. DNA ligase. 44. The codon AUG in protein synthesis is read as: a. stop. b. start. c. an internal amino acid, but not start or stop. d. release the polypeptide. e ...
DNA: The material of heredity
DNA: The material of heredity

... DNA replication occurs with a high degree of accuracy, but some errors occur. Even one error can have a serious effect ...
MICROBIAL GENETICS
MICROBIAL GENETICS

... It is a segment of DNA that carries, in its nucleotide sequence, information for specific biochemical or ...
Topic 4.1 and 4.2 Chromosomes, Alleles, Meiosis, M
Topic 4.1 and 4.2 Chromosomes, Alleles, Meiosis, M

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... According to the table below, which amino acid sequence would most likely be determined by a section of a DNA molecule with the base sequence A-A-G-G-A-T-C-C-G? ...
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... 1. Assign topics to students or groups of students, or have them choose from milestones that chart the progression of the understanding of human genetics and heredity. Have them research the subject in order to contribute to a class timeline. Following is a suggested list of milestones that might be ...
Mock Exam 3 Chapters 14-18 Anthony Todd  http
Mock Exam 3 Chapters 14-18 Anthony Todd http

... b. III only c. I and II d. I and III e. I, II, and III 48. What are control elements found thousands of nucleotides upstream or downstream of a gene? a. Transcription factors b. Enhancers c. Promoters d. Activators e. Operators 49. Which of the following is not a way that genes can be regulated by t ...
Molecular Genetics SBI4U MockTestMConly
Molecular Genetics SBI4U MockTestMConly

... 10. A missense mutation results in the substitution of one or more amino acids in the protein chain. _____ 11. Restriction endonucleases recognize, bind, and cut specific four to eight nucleotide palindromic sequences of DNA. _____ 12. Methylases add a methyl group to a specific recognition site, pr ...
DNA switches
DNA switches

... Laboratory-European Bioinformatics Institute, a lead researcher on the project. In one of the Nature papers, researchers link the gene switches to a range of human diseases — multiple sclerosis, lupus, rheumatoid arthritis, Crohn’s disease, celiac disease — and even to traits like height. In large s ...
Haploid (__)
Haploid (__)

... Review-- Chp 13--- DNA 1) Be able to complete a protein synthesis chart (like one done in notes) 2) Discuss the contributions to the understanding of DNA from scientists such as Griffith, Avery, Hershey-Chase, Watson & Crick, Chargaff 3) What is the difference between prokaryotic and eukaryotic repl ...
Building a DNA Model: An Extra Credit
Building a DNA Model: An Extra Credit

... You are to build a model of a DNA molecule. For the full amount of point, you model must have the following features: * It has at least 9-base pair long, and that * The beginning of a replication process (fork, free nucleotides!) is shown. * All of the basic features of the DNA structure, as listed ...
MCDB 1041 3/9/12 Activity 6: Central Dogma Continued PART I
MCDB 1041 3/9/12 Activity 6: Central Dogma Continued PART I

... • Point mutations: changes in a single base of DNA. Silent mutations: change in sequence of DNA results in no change in the amino acid sequence. Missense mutations: change in DNA sequence results in a different amino acid placed into the protein. Nonsense mutations: change in DNA creates a premature ...
DNA Methylation
DNA Methylation

... genes on and off and affect how cells read genes instead of being caused by changes in the DNA sequence ...
Replication, Translation and Transcription Notes
Replication, Translation and Transcription Notes

... called replication. --The hydrogen bonds between the bases are broken by an enzyme (helicase), which “unzips” the two strands of DNA. --The location at which the 2 strands separate is called a replication fork. --Free nucleotides fill in and form base pairs that are bonded into a chain by another en ...
Chapter 9: DNA Structure and Analysis
Chapter 9: DNA Structure and Analysis

... not some other molecule, serves as the genetic material in bacteria, bacteriophages, and eukaryotes? • How do we know that the structure of DNA is in the form of a right-handed double helical model? • How do we know that in DNA, G pairs with C and A pairs with T as complementary strands are formed? ...
Ch. 11 Powerpoint - Plain Local Schools
Ch. 11 Powerpoint - Plain Local Schools

... Steps of Translation 9. New amino acid is joined to the peptide chain (the polypeptide is made of 3 amino acids) 10. tRNA in the P site leaves 11. Process continues until a stop codon appears in the A site of the ribosome 12. Polypeptide is now complete ...
DNA
DNA

... • The structure or shape of DNA = Double Helix = 2 strands – Watson and Crick (1953) – tried to assemble the structure. ...
Karyn Sykes January 24, 2009 LLOG 1: Immortal Genes: Running in
Karyn Sykes January 24, 2009 LLOG 1: Immortal Genes: Running in

... diagnostics. Finally, scientists found that there are pieces of DNA coding that not only exist in humans and all eukaryotes but also in archaean genes. This discovery was profound because it gives more insight into the theory of evolution. By finding these codes, many scientists believe that an arch ...
JF lect 5 12
JF lect 5 12

... Arguments in favour of genes being made of DNA •  All cells of a given species contain a constant amount of DNA but the types and amounts of proteins differ in different cells •  The amount of DNA doubles in every cell just before it divides and an exactly equal amount is distributed to the two dau ...
5`-cgaucggauccagcuggacgcuagcguaaaaaaaa-3`
5`-cgaucggauccagcuggacgcuagcguaaaaaaaa-3`

... RNaseH A ...
Messenger RNA
Messenger RNA

... Transcription The DNA uncoils and copied. mRNA copies the template strand of DNA with the enzyme RNA Polymerase RNA Polymerase bind to one side of the DNA template at the promoter site. When the enzyme gets to the terminal signal, it comes off of the DNA and transcription ...
Molecular genetics of bacteria
Molecular genetics of bacteria

... circular, molecule of DNA – Some have more than one, some have linear DNA • Packaged w/ histone-like proteins, coiled tightly in loops, attached to membrane – 1.6 mm of DNA in a 0.002 mm sized cell. – Area of cell containing the DNA: nucleoid. ...
Protein-coding genes in eukaryotic DNA
Protein-coding genes in eukaryotic DNA

... Why are the number of protein-coding genes about the same for worms, flies, plants, and humans? This has been called the N-value paradox (number of genes) or the G value paradox (number of genes). ...
Video Questions
Video Questions

... What controls the way you look? ...
FIGURE 9.2
FIGURE 9.2

... bubble. Enzymes (RNA polymerase) and other Transcription factor proteins involved in transcription bind at the promoter. ...
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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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