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Building DNA -Hemoglobin Gene
Building DNA -Hemoglobin Gene

... There are four different types of nucleotides found in DNA, differing only in the nitrogenous base. Adenine and guanine are purines. Purines are the larger of the two types of bases found in DNA. They have two rings of carbons & nitrogens. Cytosine and thymine are pyrimidines and have a single carbo ...
Test Review KEY - Coach Blair`s Biology Website
Test Review KEY - Coach Blair`s Biology Website

... Translation is the process of making a protein from an mRNA strand. It takes place on ribosomes in the cytoplasm. 7. Where does protein synthesis occur? Protein synthesis occurs in the cytoplasm on a ribosome. 8. Transcribe the DNA strand TAG ACG GGG CCC AAA Transcribe means make mRNA: AUC UGC CCC G ...
DNA:PROTEIN SYNTHESIS REVIEW
DNA:PROTEIN SYNTHESIS REVIEW

...  Genetic code on mRNA strand converted into ___________  In cytoplasm, mRNA attaches to _____________  tRNA molecule transports amino acid to ____________--elongation of protein chain occurs • _________--unique 3-base section of mRNA • Anti-codon--unique 3-base sequence on each _________ that mat ...
DNA Quiz for Chapter 12
DNA Quiz for Chapter 12

... High energy radiation (x-rays and ultraviolet) Chemical ...
DNA CFA B SB2. Students will analyze how biological traits are
DNA CFA B SB2. Students will analyze how biological traits are

... 17. The chemical unit of nucleic acid molecules that consist of a phosphate group, a sugar molecule, and a nitrogen base is known as: c. a nucleic acid b. a base c. a ribosome d. a nucleotide 18. The two men who established the structure of DNA were: a. Hershey and Chase b. Watson and Crick c. Avery ...
DNA Replication
DNA Replication

... • What are the 3 structural differences between RNA and DNA? • What are the 3 types of RNA? • What enzyme unzips the DNA helix? • What enzyme reads and matches nucleotides to the parent DNA strand? • When does DNA replication happen? • What is a replication origin? ...
EK 3.A.1: DNA, and in some cases rna, is the primary
EK 3.A.1: DNA, and in some cases rna, is the primary

... • mRNA is processed in eukaryotes • mRNA interacts with the ribosome to initiate translation • At the start codon • Nucleotides on mRNA is read in triplet codons ...
File - Biology with​Mrs. Ellsworth
File - Biology with​Mrs. Ellsworth

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Biomarkery a mechanismy toxicity

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Chapter 11 DNA
Chapter 11 DNA

... phosphorous surrounded by 4 oxygen atoms. A nitrogenous base is a carbon ring structure that contains one or more atoms of nitrogen. In DNA there are four possible nitrogen bases: adenine (A), guanine (G), cytosine (c), and thymine (T). ...
Module 2 Exam Bullet Points
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... All the bullet points in this handout have been awarded a mark on A level mark schemes at some stage. This handout shows the level of information you must give in your answers and what the examiners are looking for. As the number of AS exams completed increases I will add to the document making it a ...
dna_2
dna_2

... reads it in a continual 3’ to 5’ direction. • The other prong is called the lagging strand. It is directionally opposite from the leading strand ...
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DNA- The Genetic Material

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... a. Primase reads the DNA and adds DNA in short segments. b. DNA replication proceeds in the 3’→5’ direction when laying down RNA nucleotides. c. The short segments of DNA are lengthened by DNA polymerase to form Okazaki fragments. d. DNA polymerase reads the DNA and adds nucleotides to the leading s ...
DNAandReplication Exam Qs.doc
DNAandReplication Exam Qs.doc

... Most were aware that cytarabine has a similar structure to cytosine. However, weaker responses were often vague regarding the subsequent effect of this, eg ‘prevents DNA replication’ or ‘inhibits helicase’. Similarly, there were many unqualified references to cytarabine acting as a competitive inhib ...
DNA STANDARDS FLIP BOOK
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... STANDARD: Students know the general pathway by which ribosomes synthesize proteins, using tRNA to translate genetic information in mRNA. PAGE 6: TRANSLATION: Draw, label and describe the process of translation (Fig. 8.16) STANDARD: Students know the general pathway by which ribosomes synthesize prot ...
Deoxyribonucleic acid - walker2015
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... produce an amino acid After an amino acid is formed, the tRNA will detach from the mRNA Amimo acids are held together by peptide bonds ...
DNA History, Structure, and Replication
DNA History, Structure, and Replication

... 5. Since one side of the DNA runs in the 3’ to 5’ direction, it is copied continuously and called the leading strand. The other side runs in the 5' to 3' direction and is called the lagging strand. Since the DNA polymerase can only READ from 3’ to 5’ and BUILD from 5’ to 3’, this lagging strand mus ...
Chapter 8
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... for replication in E. coli ...
DNA History, Structure, and Replication – Part 2
DNA History, Structure, and Replication – Part 2

... C. Helicase enzyme causes the Double Helix to unwind. (Fig: 16.16) D. Single-strand binding protein keeps the two sides apart and stable. (Look at the name and see the function.) E. Lead strand of the replication FORK (Remember, there are TWO forks going in OPPOSITE directions.) 1. This strand runs ...
INTRO TO THE STRUCTURE OF DNA Name DNA contains the
INTRO TO THE STRUCTURE OF DNA Name DNA contains the

... http://www.hhmi.org/biointeractive/dna-packaging Watch this video to see both the structure of chromatin, and how all that DNA fits into the nucleus How does protein help the DNA to form a chromosome? ...
Document
Document

... An enzyme, RNA polymerase, binds to a specific section of DNA where mRNA will be made RNA polymerase starts making mRNA from one strand of DNA, known as the template strand  DNA is read in the 3’ to 5’ direction  The mRNA strand is complimentary to the DNA template strand, and is made 5’ to 3’  U ...
Chapter12 (olivia)
Chapter12 (olivia)

... replication forks •base pairing A-T; C-G template •bonding of bases ...
DNA/RNA/Protein Synthesis Test
DNA/RNA/Protein Synthesis Test

... Transcription occurs in the nucleus. The code from DNA is transferred via complementary base pairs to mRNA. ...
Warm Up - lifewithlloyd
Warm Up - lifewithlloyd

... • One of the four possible bases in a string of DNA—it pairs with adenine • A subunit of DNA that consists of a sugar, a phosphate, and a nitrogenous base • The complement to guanine ...
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DNA replication



DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance. DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.In a cell, DNA replication begins at specific locations, or origins of replication, in the genome. Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bidirectional from the origin. A number of proteins are associated with the replication fork which helps in terms of the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new DNA by adding complementary nucleotides to the template strand.DNA replication can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to initiate DNA synthesis at known sequences in a template DNA molecule. The polymerase chain reaction (PCR), a common laboratory technique, cyclically applies such artificial synthesis to amplify a specific target DNA fragment from a pool of DNA.
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