Viscous Drag in DNA Replication
... Viscous Drag in DNA Replication One of the original concerns about Watson and Crick’s proposal that DNA replication occurs by unzipping the double helix was that the energy required to overcome viscous effects in order to twist a very long cylinder in water would be far too large. In this problem, y ...
... Viscous Drag in DNA Replication One of the original concerns about Watson and Crick’s proposal that DNA replication occurs by unzipping the double helix was that the energy required to overcome viscous effects in order to twist a very long cylinder in water would be far too large. In this problem, y ...
DNA: The Molecule of Heredity
... bases. But there are some major differences-• The sugar in RNA, is Ribose. • RNA is single stranded • the nitrogen bases consist of Uracil (U), Adenine (A), Guanine (G) and Cytosine (C). • Uracil and Adenine = Base Pair • Guanine and Cytosine = Base Pair ...
... bases. But there are some major differences-• The sugar in RNA, is Ribose. • RNA is single stranded • the nitrogen bases consist of Uracil (U), Adenine (A), Guanine (G) and Cytosine (C). • Uracil and Adenine = Base Pair • Guanine and Cytosine = Base Pair ...
7.1 Nucleic Acid (HL only)
... Making careful observations—Rosalind Franklin’s X-ray diffraction provided crucial evidence that DNA is a double helix. (1.8) Understandings: • Nucleosomes help to supercoil the DNA. • DNA structure suggested a mechanism for DNA replication. • DNA polymerases can only add nucleotides to the 3’ end o ...
... Making careful observations—Rosalind Franklin’s X-ray diffraction provided crucial evidence that DNA is a double helix. (1.8) Understandings: • Nucleosomes help to supercoil the DNA. • DNA structure suggested a mechanism for DNA replication. • DNA polymerases can only add nucleotides to the 3’ end o ...
Learning Guide:
... o Summarize the research of the following people: Griffith (and transformations), Avery, McCarty and MacLeod, Hershey and Chase, Chargraff, Wilkins and Franklin, Watson and Crick o Describe the structure of DNA and the building blocks (nucleotides), explain the difference between purines and pyrimid ...
... o Summarize the research of the following people: Griffith (and transformations), Avery, McCarty and MacLeod, Hershey and Chase, Chargraff, Wilkins and Franklin, Watson and Crick o Describe the structure of DNA and the building blocks (nucleotides), explain the difference between purines and pyrimid ...
DNA protein synthesis
... 12) When does DNA replicate? 13) Why is DNA replication described as semi conservative? Be able to list the base sequence of a strand of DNA when given a sequence from the opposite DNA strand. 15) List and describe the function of the 2 enzymes used in DNA replication we discussed in class. ...
... 12) When does DNA replicate? 13) Why is DNA replication described as semi conservative? Be able to list the base sequence of a strand of DNA when given a sequence from the opposite DNA strand. 15) List and describe the function of the 2 enzymes used in DNA replication we discussed in class. ...
DNA History and Replication
... • developed double helix model of DNA • other scientists working on question: • Rosalind Franklin • Maurice Wilkins • Linus Pauling ...
... • developed double helix model of DNA • other scientists working on question: • Rosalind Franklin • Maurice Wilkins • Linus Pauling ...
1b Unit 5 DNA structure and replication powerpoint
... Replication: The process of making a copy of DNA The “parent” molecule has two complementary strands of DNA. Each is base paired by hydrogen bonding with its specific partner: A with T and G with C ...
... Replication: The process of making a copy of DNA The “parent” molecule has two complementary strands of DNA. Each is base paired by hydrogen bonding with its specific partner: A with T and G with C ...
Nucleic Acids and DNA Replication
... Do you think Franklin deserved the Nobel Prize? Why do you think she did not receive more recognition? ...
... Do you think Franklin deserved the Nobel Prize? Why do you think she did not receive more recognition? ...
Biology End of Quarter 3 Quiz Name_______Key__________
... 1. What function does the structure labeled 1 do? DNA Helicase- Unwind and untwist DNA 2. What role does the structure labeled 4 serve in DNA replication? RNA Primer-Allow for DNA nucleotides to be added for the new strand of DNA 3. What role does the structure labeled 2 serve in DNA replication? DN ...
... 1. What function does the structure labeled 1 do? DNA Helicase- Unwind and untwist DNA 2. What role does the structure labeled 4 serve in DNA replication? RNA Primer-Allow for DNA nucleotides to be added for the new strand of DNA 3. What role does the structure labeled 2 serve in DNA replication? DN ...
Name Date
... Part 3: Using the putting it together section, click on the base pairing interactive section and follow the instruction on the screen to determine the structure of DNA. Provide a diagram of DNA, which shows the general shape of the DNA molecule with the nitrogen bases (A, T, C and G), sugar and phos ...
... Part 3: Using the putting it together section, click on the base pairing interactive section and follow the instruction on the screen to determine the structure of DNA. Provide a diagram of DNA, which shows the general shape of the DNA molecule with the nitrogen bases (A, T, C and G), sugar and phos ...
Notes
... DNA is a molecular structure containing the info that a cell needs to carry out all of its functions. In a way, __________________________________________________________ . DNA is a nucleic acid macromolecule made of nucleotides joined into long strands by covalent bonds. It is located in the ______ ...
... DNA is a molecular structure containing the info that a cell needs to carry out all of its functions. In a way, __________________________________________________________ . DNA is a nucleic acid macromolecule made of nucleotides joined into long strands by covalent bonds. It is located in the ______ ...
Skills Worksheet
... DNA helicases are enzymes that unwind the double helix of the DNA molecule. The unwinding is accomplished by breaking the hydrogen bonds that link the complementary bases. RNA consists of a single strand of nucleotides instead of the two strands that form the DNA double helix. RNA nucleotides have t ...
... DNA helicases are enzymes that unwind the double helix of the DNA molecule. The unwinding is accomplished by breaking the hydrogen bonds that link the complementary bases. RNA consists of a single strand of nucleotides instead of the two strands that form the DNA double helix. RNA nucleotides have t ...
Section 10-1
... another 15% of the nucleotides must contain cytosine. The remaining 70% of the nucleotides (100%–30%) must contain adenine and thymine in equal proportions (35% each), since they are complementary to each other. 3. Complementary base pairing is important because the hydrogen bonds between the bases ...
... another 15% of the nucleotides must contain cytosine. The remaining 70% of the nucleotides (100%–30%) must contain adenine and thymine in equal proportions (35% each), since they are complementary to each other. 3. Complementary base pairing is important because the hydrogen bonds between the bases ...
Worksheet on DNA and RNA
... 8. The process in which DNA builds an exact duplicate of itself is known as _______________________. 9. RNA does not have _____________________ nitrogen base. It is replaced with ____________________. 10. RNA is a ___________________ stranded molecule. 11. The three types of RNA are ________________ ...
... 8. The process in which DNA builds an exact duplicate of itself is known as _______________________. 9. RNA does not have _____________________ nitrogen base. It is replaced with ____________________. 10. RNA is a ___________________ stranded molecule. 11. The three types of RNA are ________________ ...
Biology_files/DNA Unit Assignments
... a. Draw/label & describe chromosome structure (pg 295-297) i. Key words: Histone, Nucleosome, Coils, Supercoils b. Draw/label & describe DNA replication (page 297-299) i. Key words: Replication fork, DNA Polymerase, Original & New strands ii. Exceeds option: Leading & lagging strands, Helicase, Okaz ...
... a. Draw/label & describe chromosome structure (pg 295-297) i. Key words: Histone, Nucleosome, Coils, Supercoils b. Draw/label & describe DNA replication (page 297-299) i. Key words: Replication fork, DNA Polymerase, Original & New strands ii. Exceeds option: Leading & lagging strands, Helicase, Okaz ...
Reading Assignment Name
... 23. The enzyme __________________ splits up the twisted DNA strands so that the mRNA can copy the DNA message. 24. The purpose of the mRNA strand is ____________________________________________________. ...
... 23. The enzyme __________________ splits up the twisted DNA strands so that the mRNA can copy the DNA message. 24. The purpose of the mRNA strand is ____________________________________________________. ...
Higher Biology Extended Response Question Worth 9 marks
... This extended question is an example of what might appear in the CfE Higher Biology Exam. It is worth 9 marks and this essay would score 6. To improve the second section the answers should contain more detail about how the DNA unwinds and unzips and all of the enzymes involved. ...
... This extended question is an example of what might appear in the CfE Higher Biology Exam. It is worth 9 marks and this essay would score 6. To improve the second section the answers should contain more detail about how the DNA unwinds and unzips and all of the enzymes involved. ...
File
... 8. When the DNA molecule above is replicated, what will the resulting two strands consist of? a. One DNA molecule with all new DNA strands and one molecule with the original DNA strands b. Each with one new DNA strand and one original DNA strand c. Each consisting of new DNA only. ...
... 8. When the DNA molecule above is replicated, what will the resulting two strands consist of? a. One DNA molecule with all new DNA strands and one molecule with the original DNA strands b. Each with one new DNA strand and one original DNA strand c. Each consisting of new DNA only. ...
DNA Replication
... Student Expectation B 5.A1 Describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication. ...
... Student Expectation B 5.A1 Describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication. ...
Molecular Bio
... factors mediate the binding of RNA polymerase to an initiation sequence (TATA box) Elongation~ RNA polymerase continues unwinding DNA and adding nucleotides to the 3’ end Termination~ RNA polymerase reaches terminator sequence ...
... factors mediate the binding of RNA polymerase to an initiation sequence (TATA box) Elongation~ RNA polymerase continues unwinding DNA and adding nucleotides to the 3’ end Termination~ RNA polymerase reaches terminator sequence ...
Molecular Genetics DNA
... Semi-conservative – one half of DNA is old strand and other half is new Starts are replication origin (specific nucleotide sequence) – on strand will have many start points ...
... Semi-conservative – one half of DNA is old strand and other half is new Starts are replication origin (specific nucleotide sequence) – on strand will have many start points ...
L16.3 Assessment
... All of the following combinations of nucleotides are examples of normal base-pairing EXCEPT: a. An adenine DNA nucleotide to a Thymine DNA nucleotide b. A guanine DNA nucleotide to a cytosine DNA nucleotide c. A cytosine DNA nucleotide to an adenine DNA nucleotide Which of the following is NOT part ...
... All of the following combinations of nucleotides are examples of normal base-pairing EXCEPT: a. An adenine DNA nucleotide to a Thymine DNA nucleotide b. A guanine DNA nucleotide to a cytosine DNA nucleotide c. A cytosine DNA nucleotide to an adenine DNA nucleotide Which of the following is NOT part ...
Biology Name: Jacob Smith DNA: Interactive Simulation I: DNA
... Click: “DNA replication” (upper left) and then click “Unzip” Read the script and answer the questions below. 1. In a real cell, what does the DNA molecule do before it unzips? The DNA unwinds from spools made of protein. ...
... Click: “DNA replication” (upper left) and then click “Unzip” Read the script and answer the questions below. 1. In a real cell, what does the DNA molecule do before it unzips? The DNA unwinds from spools made of protein. ...
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.