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DNA STRUCTURE AND REPLICATION Nucleotides: 1. 5 carbon
DNA STRUCTURE AND REPLICATION Nucleotides: 1. 5 carbon

... strain transformed the R strain into S strain bacteria. They isolated protein, carbohydrates, RNA, and DNA from samples of heat killed S strain bacteria. They then mixed each of the isolates with R strain bacteria and looked for ...
lecture 7 (BY 14)
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... Each of the two parent strands guides the assembly of new DNA strands from free nucleotides, according to base-pairing rules. Any gaps between bases of the “new” DNA are joined to form a continuous strand. The base sequence of each half-old, half-new DNA molecule is identical to that of the parent. ...
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... • Store and transmit hereditary information • Amino acid sequence of a polypeptide is programmed by a unit of inheritance called a gene • Genes are found on chromosomes. ...
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... Essential Question- Bell Ringer • How does the structure of DNA make it possible for traits to be passed on from one generation to another? The nucleotide bases that are paired on a DNA strand are complementary to each other. When the DNA molecule unzips and unwinds during DNA synthesis, the expose ...
HAPPY TUESDAY
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... 3. A banana is composed of eukaryotic cells. Where is its DNA located? 4. Where is the DNA located in a prokaryotic cell? Why? 5. What is the monomer of DNA? 6. What is this monomer composed of? 7. How does the genetic code (DNA) differ from organism to organism? 8. Why is it important for scientist ...
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... The four nitrogen bases that make up the rungs of the DNA molecule are adenine, thymine, cytosine, and guanine. The nitrogen bases are abbreviated A, T, C, and G. It takes two nitrogen bases to make one DNA rung, and adenine always pairs with thymine and cytosine always pairs with guanine. Molecules ...
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... The archaeal proteins do not appear to have arisen out of a gradual evolution of bacterial proteins, but the wholesale adoption of a different system – for example, the DNA helicase in the bacterial system (DnaB) is processive in the opposite direction (5 to 3 ) to that of the archaeal MCM (3 to ...
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...  The two DNA strands are held together by weak hydrogen bonds between complementary base pairs  A and T  C and G ...
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...  What is the role of these primers?  Why are two different primers required?  When DNA strands are separated in the PCR, what type of bond is broken?  It is important in the PCR that the fragments of DNA used are not contaminated with any other biological material. Suggest a reason why. ...
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DNA, RNA and Protein Synthesis Study Guide Applied Bio Name

... Number of strands, type of sugars, nitrogen bases in each  Describe the role of RNA in the formation of traits See Protein synthesis notes & activities  Differentiate between the mRNA and tRNA Protein Synthesis sentence activity & exit ticket  Model the processes of transcription and translation ...
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... • How does a cell copy its genetic material? – Replication • Double helix separate • Copy instructions (DNA) with a DNA template that produces a new, complementary strand for each of the old template strands • (DNA copied before or after cell division?) ...
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Eukaryotic DNA replication



Eukaryotic DNA replication is a conserved mechanism that restricts DNA replication to only once per cell cycle. Eukaryotic DNA replication of chromosomal DNA is central for the duplication of a cell and is necessary for the maintenance of the eukaryotic genome.DNA replication is the action of DNA polymerases synthesizing a DNA strand complementary to the original template strand. To synthesize DNA, the double-stranded DNA is unwound by DNA helicases ahead of polymerases, forming a replication fork containing two single-stranded templates. Replication processes permit the copying of a single DNA double helix into two DNA helices, which are divided into the daughter cells at mitosis. The major enzymatic functions carried out at the replication fork are well conserved from prokaryotes to eukaryotes, but the replication machinery in eukaryotic DNA replication is a much larger complex, coordinating many proteins at the site of replication, forming the replisome.The replisome is responsible for copying the entirety of genomic DNA in each proliferative cell. This process allows for the high-fidelity passage of hereditary/genetic information from parental cell to daughter cell and is thus essential to all organisms. Much of the cell cycle is built around ensuring that DNA replication occurs without errors.In G1 phase of the cell cycle, many of the DNA replication regulatory processes are initiated. In eukaryotes, the vast majority of DNA synthesis occurs during S phase of the cell cycle, and the entire genome must be unwound and duplicated to form two daughter copies. During G2, any damaged DNA or replication errors are corrected. Finally, one copy of the genomes is segregated to each daughter cell at mitosis or M phase. These daughter copies each contain one strand from the parental duplex DNA and one nascent antiparallel strand.This mechanism is conserved from prokaryotes to eukaryotes and is known as semiconservative DNA replication. The process of semiconservative replication for the site of DNA replication is a fork-like DNA structure, the replication fork, where the DNA helix is open, or unwound, exposing unpaired DNA nucleotides for recognition and base pairing for the incorporationof free nucleotides into double-stranded DNA.
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