DNA and Protein Synthesis
... They bring in amino acids to the ribosome and the chains are linked together to make the protein. ...
... They bring in amino acids to the ribosome and the chains are linked together to make the protein. ...
DNA Structure and Function
... • The cell makes copies of DNA molecules through a process known as replication. • During replication, the two strands of DNA separate. • The bases on each side of the molecule are used as a pattern for a new strand. • As bases on the original molecule are exposed, complementary nucleotides are adde ...
... • The cell makes copies of DNA molecules through a process known as replication. • During replication, the two strands of DNA separate. • The bases on each side of the molecule are used as a pattern for a new strand. • As bases on the original molecule are exposed, complementary nucleotides are adde ...
DNA strucutre and replication
... Discovering the structure of DNA • DNA = Deoxyribose nucleic acid • Made out of sugars (deoxyribose), phosphates and nitrogen bases ...
... Discovering the structure of DNA • DNA = Deoxyribose nucleic acid • Made out of sugars (deoxyribose), phosphates and nitrogen bases ...
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? ...
... 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? ...
DNA - The Double Helix
... alternating sugar & phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of nitrogen bases. ...
... alternating sugar & phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of nitrogen bases. ...
simulating protein synthesis
... On page 2 you will see a strand of DNA called the coding strand. It will have the base sequence ATGCCTAGT. From this coding strand you will simulate the enzyme DNA polymerase and construct a complementary strand of DNA, known as the template strand. The coding strand and template strand make up the ...
... On page 2 you will see a strand of DNA called the coding strand. It will have the base sequence ATGCCTAGT. From this coding strand you will simulate the enzyme DNA polymerase and construct a complementary strand of DNA, known as the template strand. The coding strand and template strand make up the ...
DNA STRUCTURE AND REPLICATION Nucleotides: 1. 5 carbon
... ______ Keep DNA strands separated ______ Adds DNA nucleotides to exposed bases ______ Produces the RNA primer ______ Short RNA segment needed to start DNA replication ______ Fuses the Okazaki fragments ______ Replication fragments of the lagging strand ...
... ______ Keep DNA strands separated ______ Adds DNA nucleotides to exposed bases ______ Produces the RNA primer ______ Short RNA segment needed to start DNA replication ______ Fuses the Okazaki fragments ______ Replication fragments of the lagging strand ...
Chapter 10 - Evangel University
... • a helicase binds at the replication fork and promotes unwinding • single-stranded binding (SSB) protein protects exposed regions of single-stranded DNA • Primase catalyzes the synthesis of RNA primer • Synthesis • catalyzed by Pol III • primer removed by Pol I • DNA ligase seals remaining nicks ...
... • a helicase binds at the replication fork and promotes unwinding • single-stranded binding (SSB) protein protects exposed regions of single-stranded DNA • Primase catalyzes the synthesis of RNA primer • Synthesis • catalyzed by Pol III • primer removed by Pol I • DNA ligase seals remaining nicks ...
dna and protein synthesis
... 2. RNA polymerase pairs free RNA nucleotides to the exposed bases of one of the DNA strands following base pair rules. • Uracil replaces thymine • Only 1 strand of DNA serves as a template, the other “hangs out” 3. Newly synthesized mRNA separates from template DNA and DNA zips back up. ...
... 2. RNA polymerase pairs free RNA nucleotides to the exposed bases of one of the DNA strands following base pair rules. • Uracil replaces thymine • Only 1 strand of DNA serves as a template, the other “hangs out” 3. Newly synthesized mRNA separates from template DNA and DNA zips back up. ...
The Molecular Nature of Genes
... 19. Which of the following would prevent the formation of a phosphodiester bond in DNA? A. removal of a nitrogen from one of the bases B. removal of oxygen from carbon 2 of the sugar C. removal of an oxygen from carbon 3 of the sugar D. removal of the phosphate from the alpha position of the nucleos ...
... 19. Which of the following would prevent the formation of a phosphodiester bond in DNA? A. removal of a nitrogen from one of the bases B. removal of oxygen from carbon 2 of the sugar C. removal of an oxygen from carbon 3 of the sugar D. removal of the phosphate from the alpha position of the nucleos ...
File - Biology withMrs. Ellsworth
... 1. The double coiled shape of DNA is called a ___Double___ __Helix__. 2. In order for DNA to begin replication __Hydrogen__ ___Bonds_______ between nitrogen bases must break. 3. DNA has ___2___ strands. 4. DNA nucleotides consist of 3 parts: a. _Nitrogen___ ____Bases____ b. __Phosphate____ ___Groups ...
... 1. The double coiled shape of DNA is called a ___Double___ __Helix__. 2. In order for DNA to begin replication __Hydrogen__ ___Bonds_______ between nitrogen bases must break. 3. DNA has ___2___ strands. 4. DNA nucleotides consist of 3 parts: a. _Nitrogen___ ____Bases____ b. __Phosphate____ ___Groups ...
Ch16p1
... *DNA composition is species-specific; the amounts and ratios of bases vary from one species to another *in every species he studied, there was a regularity in base ratios where the # of A residues equaled the # of T residues, and the # of G equaled the # of C ...
... *DNA composition is species-specific; the amounts and ratios of bases vary from one species to another *in every species he studied, there was a regularity in base ratios where the # of A residues equaled the # of T residues, and the # of G equaled the # of C ...
DNA Replication – Lecture by Dr Mahmood S Choudhery
... 1. Initiation Replication begins at a location on double helix called “Ori” Helicase unwinds (denature) DNA by breaking Hydrogen bonds Single-stranded DNA-binding proteins (SSBP) attach to separated DNA strands ...
... 1. Initiation Replication begins at a location on double helix called “Ori” Helicase unwinds (denature) DNA by breaking Hydrogen bonds Single-stranded DNA-binding proteins (SSBP) attach to separated DNA strands ...
Chapter 8 Questions
... together, however RNA does not contain the nucleotide __________, which is replaced by __________. 12. A nucleotide of DNA is composed of a ____________ sugar group, a __________ group and a ____________ ______. 13. The nitrogenous bases in each rung of the DNA 'ladder' are held together by very str ...
... together, however RNA does not contain the nucleotide __________, which is replaced by __________. 12. A nucleotide of DNA is composed of a ____________ sugar group, a __________ group and a ____________ ______. 13. The nitrogenous bases in each rung of the DNA 'ladder' are held together by very str ...
CH-12 Sect 12
... 17. List the three critical things that genes were known to do. a. __________________________________________________________________________________________________ b. __________________________________________________________________________________________________ c. _____________________________ ...
... 17. List the three critical things that genes were known to do. a. __________________________________________________________________________________________________ b. __________________________________________________________________________________________________ c. _____________________________ ...
DNA Replication Complex
... end. Because of this, DNA strands would be made unevenly with progressively shorter ends. To combat this, organisms with linear DNA (Eukaryotes), have structures called telomeres which prevent the ends of DNA from becoming uneven. Telomeres do not contain new genes. The telomeres actually consist of ...
... end. Because of this, DNA strands would be made unevenly with progressively shorter ends. To combat this, organisms with linear DNA (Eukaryotes), have structures called telomeres which prevent the ends of DNA from becoming uneven. Telomeres do not contain new genes. The telomeres actually consist of ...
1 - Pdx
... 5 * errors / genome 5.) The mutS gene of E. coli O157 is inactivated by a mutation. MutS is part of the methyl directed mismatch repair system. Describe how DNA methylation allows replication to correct errors that were made during replication. (5pts) Methylation occurs at GATC sites on the DNA. Sin ...
... 5 * errors / genome 5.) The mutS gene of E. coli O157 is inactivated by a mutation. MutS is part of the methyl directed mismatch repair system. Describe how DNA methylation allows replication to correct errors that were made during replication. (5pts) Methylation occurs at GATC sites on the DNA. Sin ...
Bio 102 Practice Problems
... actually contains some short stretches of RNA. 3. Watson and Crick’s DNA structure was especially convincing because it immediately suggested a hypothesis for how a nucleotide sequence could be translated into protein. 4. The DNA strand that is referred to as the lagging strand on one side of the re ...
... actually contains some short stretches of RNA. 3. Watson and Crick’s DNA structure was especially convincing because it immediately suggested a hypothesis for how a nucleotide sequence could be translated into protein. 4. The DNA strand that is referred to as the lagging strand on one side of the re ...
Structure & Function of DNA
... DNA has 2 backbones and the bases pair up to connect the two backbones together ** This results in the “Double Helix” structure of DNA** ...
... DNA has 2 backbones and the bases pair up to connect the two backbones together ** This results in the “Double Helix” structure of DNA** ...
IV.D.3 ISOLATION OF DNA FRAGMENTS FROM
... the pieces to a small test tube and add 1 volume of elution buffer (0.5 M ammonium acetate and 1 mM EDTA [pH8.0]). ...
... the pieces to a small test tube and add 1 volume of elution buffer (0.5 M ammonium acetate and 1 mM EDTA [pH8.0]). ...
Lec. 2 - DNA replication 1
... Other proteins needed for DNA replication: 4. DNA Helicase (dnaB gene) – hexameric protein, unwinds DNA strands, uses ATP. 5. SSB – single-strand DNA binding protein, prevents strands from re-annealing and from being degraded, stimulates DNA Pol III. 6. Gyrase – a.k.a. Topoisomerase II, keeps DNA a ...
... Other proteins needed for DNA replication: 4. DNA Helicase (dnaB gene) – hexameric protein, unwinds DNA strands, uses ATP. 5. SSB – single-strand DNA binding protein, prevents strands from re-annealing and from being degraded, stimulates DNA Pol III. 6. Gyrase – a.k.a. Topoisomerase II, keeps DNA a ...
Click on image to content
... The rule A+C=U+G CAN'T BE APPLIED THERE Because most RNA is single stranded and does not form a double helix. Although each RNA molecule has only a single polynucleotide chain, it is not a smooth linear structure. It has extensive regions of complementary AU, or GC pairs. Therefore, the molecule fol ...
... The rule A+C=U+G CAN'T BE APPLIED THERE Because most RNA is single stranded and does not form a double helix. Although each RNA molecule has only a single polynucleotide chain, it is not a smooth linear structure. It has extensive regions of complementary AU, or GC pairs. Therefore, the molecule fol ...
Name: _________Date: : _____ Assignment #_____ Chapter 12
... 12-2: Chromosomes and DNA Replication 1. Where is DNA found in prokaryotic cells? ______________________ 2. DNA wraps around proteins called _______________________ to form _________________________. 3. At the beginning of cell division, the DNA and proteins pack together even tighter to form indivi ...
... 12-2: Chromosomes and DNA Replication 1. Where is DNA found in prokaryotic cells? ______________________ 2. DNA wraps around proteins called _______________________ to form _________________________. 3. At the beginning of cell division, the DNA and proteins pack together even tighter to form indivi ...
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.