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Section 12-1
Section 12-1

... Each strand of DNA double helix has all the info to___________________________by base pairing Strands are complementary In prokaryotes,this begins @single point and proceeds-often in 2 directions In Eukaryotes,DNA replication begins @ 100’s of places,going both directions until complete ____________ ...
Transcription & Translation
Transcription & Translation

... Occurs in the ribosomes Codon – a sequence of 3 bases that codes for a specific amino acid Anticodon – the complementary 3 base sequence on a tRNA molecule ...
The DNA Double Helix
The DNA Double Helix

... the amounts of adenine and thymine. Adenine and guanine are known as purines. These bases consist of two ring structures. Purines make up one of the two groups of nitrogenous bases. Thymine and cytosine are pyrimidines, which have just one ring structure. By having a purine always combine with a pyr ...
Fig. 16.19b
Fig. 16.19b

... million base pairs in its single chromosome and divide to form two identical daughter cells. • A human cell can copy its 6 billion base pairs and divide into daughter cells in only a few hours. • This process is remarkably accurate, with only one error per billion nucleotides. • More than a dozen en ...
Protocol for End-It™ DNA End-Repair Kit
Protocol for End-It™ DNA End-Repair Kit

... • Prepare double-stranded cDNA, produced from cellular RNA transcripts, for ligation of next-gen DNA sequencing adaptors. • Prepare sheared, nebulized, or restriction enzyme digested DNA for blunt-end ligation into plasmid, cosmid, fosmid, or BAC vectors. • Prepare DNA amplified by PCR, containin ...
Key Stage 3 – DNA detectives
Key Stage 3 – DNA detectives

... Which scientist(s) do you think deserved the Nobel Prize for working it out? (you can't include yourself!) Explain your answer. ...
DNA - thatscienceguy
DNA - thatscienceguy

... profiling, is used in criminal or legal cases with a high degree of accuracy.  Biological evidence such as blood, saliva, ...
Section 12-1
Section 12-1

... RNA molecules are produced by copying part of the nucleotide sequence of DNA into a complementary sequence of RNA. This process is called transcription and produces mRNA. RNA polymerase is the enzyme that carries out transcription. RNA polymerase binds to DNA and separates the DNA strands. One of th ...
Nucleic Acids
Nucleic Acids

... organism - “heredity” – This information is contained in the chromosomes in the nucleus of the cell – Genes inside the chromosomes carry specific information ...
DNA, RNA and Protein Synthesis
DNA, RNA and Protein Synthesis

... A always pairs with T C always pairs with G * Bases are held together by hydrogen bonds. ...
7.014 Problem Set 3
7.014 Problem Set 3

... 1. DNA replication (a) Why is DNA replication an essential process? In order for an organism to grow, its’ cells need to divide. For each round of cell division, DNA has to be replicated such that both the parental cell and daughter cell receive a copy of DNA after division. (b) You have created an ...
DNA - jacybiology
DNA - jacybiology

... “Thirty-three independent mutant cell lines were selected in single steps for resistance to low concentrations of N-(phosphonacetyl)-L-aspartate and the structure of their amplified DNA was probed, using a set of recombinant phage and cosmids containing a total of 380 kb of amplified DNA. In all 33 ...
Biology Lab
Biology Lab

... ultimately our physical traits. The DNA that we inherit from our parents and eventually pass on to our children contains the information for making these proteins. This genetic code is first transcribed into an mRNA molecule which is then translated by a ribosome in the cytoplasm to make the protein ...
What does the Lifesequencing study tell us about the DNA of
What does the Lifesequencing study tell us about the DNA of

... This arrangement is compacted even more with the famous double helix structure, where the base pair alignment is twisted about a central axis to form the structure discovered by Watson and Crick in 1969. To achieve this structure the DNA bases are accompanied by other substances such as nitrogenous ...
Quiz 6 Molecular Biology
Quiz 6 Molecular Biology

... 1) Look at the PowerPoint image in the front of the classroom. Which suspect’s DNA is compatible with the crime scene sample of DNA? a) Suspect 1 b) Suspect 2 c) Suspect 3 d) None of the suspects 2) Look at the PowerPoint image in the front of the classroom. What is true about this family? a) The ma ...
DNA and PROTEIN SYNTHESIS - Salisbury Composite High
DNA and PROTEIN SYNTHESIS - Salisbury Composite High

... rise to specific structures or characteristics. Different sequences and combinations give rise to different characteristics. ...
DNA Scavenger Hunt
DNA Scavenger Hunt

... DNA Scavenger Hunt Revisited You have already translated the DNA strands. Now you will look at mutations in the DNA strands and identify what has happened and how the strands have changed. Original DNA Strand 1 = GCGGACAAG (6 points) Mutated DNA Strand 1 = GGGACAAG How is the mutated strand differen ...
transcription, translation
transcription, translation

... important for genetic information? 3. Whys is RNA important to the cell? How does an mRNA molecule carry information from DNA? 4. If DNA strand read AAC GTC GCG TAC, what would the mRNA strand be? ...
Chapter 7
Chapter 7

... - Resemble chromosomes of prokaryotes - Only code for about 5% of RNA and proteins  Some fungi and protozoa carry plasmids ...
Unit 8 Molecular Genetics Chp 16 DNA PPT
Unit 8 Molecular Genetics Chp 16 DNA PPT

... formation of only a single primer as the replication fork continues to separate. • The lagging strand requires formation of a new primer as the replication fork progresses. • After the primer is formed, DNA polymerase can add new nucleotides away from the fork until it runs into the previous Okazaki ...
DNA - Cloudfront.net
DNA - Cloudfront.net

... Why would DNA need to replicate itself? • When a cell divides and replicates itself during mitosis, it needs to also replicate its DNA. • During meiosis, the process of gamete formation, DNA needs to be replicated to pass genes onto offspring. ...
DNA, RNA and Protein Synthesis
DNA, RNA and Protein Synthesis

... A always pairs with T C always pairs with G * Bases are held together by hydrogen bonds. ...
DNA Replication - Biology Junction
DNA Replication - Biology Junction

... Lagging Strand Segments • Okazaki Fragments - series of short segments on the lagging strand • Must be joined together by an enzyme DNA ...
DNA Replication - Peoria Public Schools
DNA Replication - Peoria Public Schools

... Lagging Strand Segments • Okazaki Fragments - series of short segments on the lagging strand • Must be joined together by an enzyme DNA ...
Lecture #7 Date ______
Lecture #7 Date ______

... Name the disorder that Andrew and his sister inherited. What were the major symptoms of this disorder? How can this genetic defect be treated? Name the gene that is defective. How can a gene be transported and carried to a cell? What is a vector? Give an example. What purpose do restriction enzymes ...
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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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