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... 15. The nucleotides in a single strand of DNA are held together by which of the following bonds? A) Disulfide B) Phosphodiester C) Hydrogen D) Peptide 16. In DNA replication, the leading strand is the strand that has which conformation? A) 5 to 3 B) 3 to 5 C) Both strands are leading 17. Which o ...
... 15. The nucleotides in a single strand of DNA are held together by which of the following bonds? A) Disulfide B) Phosphodiester C) Hydrogen D) Peptide 16. In DNA replication, the leading strand is the strand that has which conformation? A) 5 to 3 B) 3 to 5 C) Both strands are leading 17. Which o ...
Lecture 7 DR MANAR - Dr-Manar-KSU
... DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. ...
... DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. ...
DNA – Deoxyribose Nucleic Acid
... Errors in DNA replication? Mutations can be in form of deletions, additions, and/or change of nucleotide types. Errors are usually very few – a type of DNA polymerase is involved in proof-reading and repair of mistakes. Final errors are usually about one in a billion. DNA polymerases and DNA ligase ...
... Errors in DNA replication? Mutations can be in form of deletions, additions, and/or change of nucleotide types. Errors are usually very few – a type of DNA polymerase is involved in proof-reading and repair of mistakes. Final errors are usually about one in a billion. DNA polymerases and DNA ligase ...
• What does DNA stand for? • Where do we find DNA? • How do
... identical to the parent cell B. Remember that for this to happen, DNA in the parent cell must be replicated (copied) before cell division -this process occurs during S phase of Interphase ...
... identical to the parent cell B. Remember that for this to happen, DNA in the parent cell must be replicated (copied) before cell division -this process occurs during S phase of Interphase ...
C16 DNA
... Excision repair – type of damage repair to DNA, that includes use of a nuclease and then filling in with nucleotides from the undamaged strand. Important in skin cells due to UV damage. Since DNA polymerase can only add nucleotides to the 3’ end, repeated replication produces shorter and shorter DNA ...
... Excision repair – type of damage repair to DNA, that includes use of a nuclease and then filling in with nucleotides from the undamaged strand. Important in skin cells due to UV damage. Since DNA polymerase can only add nucleotides to the 3’ end, repeated replication produces shorter and shorter DNA ...
DNA Replication
... The other strand is what we call the “lagging strand” because nucleotides are added in ...
... The other strand is what we call the “lagging strand” because nucleotides are added in ...
DNA: The Genetic Material
... – Matches existing DNA bases with complementary nucleotides and links them – All have several common features • Add new bases to 3′ end of existing strands • Synthesize in 5′-to-3′ direction • Require a primer of RNA ...
... – Matches existing DNA bases with complementary nucleotides and links them – All have several common features • Add new bases to 3′ end of existing strands • Synthesize in 5′-to-3′ direction • Require a primer of RNA ...
Document
... through hybridization (attachment) of fluorescently-labeled DNA probes to denatured chromosomal DNA. Step 1. Preparation of probe. A probe is a fluorescently-labeled segment of DNA complementary to a chromosomal region of interest. ...
... through hybridization (attachment) of fluorescently-labeled DNA probes to denatured chromosomal DNA. Step 1. Preparation of probe. A probe is a fluorescently-labeled segment of DNA complementary to a chromosomal region of interest. ...
Name
... d. each new double helix consists of 1 old & 1 new strand. 12. In E. coli the error rate of DNA replication is approximately a. 1 per 1,000 nucleotides. b. 1 per 1,000,000 nucleotides. c. 1 per 1,000,000,000 nucleotides. d. 1 per 1,000,000,000,000 nucleotides. 13. Eukaryotic replication bubbles open ...
... d. each new double helix consists of 1 old & 1 new strand. 12. In E. coli the error rate of DNA replication is approximately a. 1 per 1,000 nucleotides. b. 1 per 1,000,000 nucleotides. c. 1 per 1,000,000,000 nucleotides. d. 1 per 1,000,000,000,000 nucleotides. 13. Eukaryotic replication bubbles open ...
24 DNA
... organization of eukaryotic DNA Unique DNA: found only one time in a given genome. - These are often protein coding segments, which tend to vary little or none between individuals, and even between species. - RNA- and protein-coding DNA is about 1.5% of the human genome. Repetitive DNA: uh, repeated ...
... organization of eukaryotic DNA Unique DNA: found only one time in a given genome. - These are often protein coding segments, which tend to vary little or none between individuals, and even between species. - RNA- and protein-coding DNA is about 1.5% of the human genome. Repetitive DNA: uh, repeated ...
DNA Replication - cloudfront.net
... the original cell’s DNA. How are the new strands and the original strands divided between the two new cells? ...
... the original cell’s DNA. How are the new strands and the original strands divided between the two new cells? ...
2.7 DNA Replication - LaPazColegio2014-2015
... • discontinuous synthesis of the second strand • removal of the RNA primers • joining of the gap-filling DNA to the adjacent strand ...
... • discontinuous synthesis of the second strand • removal of the RNA primers • joining of the gap-filling DNA to the adjacent strand ...
DNA Replication - cloudfront.net
... from the last section of Lagging strand • DNA polymerase cannot seal the gap • The end of the parental strand is not replicated • These non coding DNA sequences called telomeres • As a result part of telomere is removed in every subsequent replication • Enzymes like nucleases fix the possible errors ...
... from the last section of Lagging strand • DNA polymerase cannot seal the gap • The end of the parental strand is not replicated • These non coding DNA sequences called telomeres • As a result part of telomere is removed in every subsequent replication • Enzymes like nucleases fix the possible errors ...
DNA Structure and DNA Replication
... ► Therefore, he concluded that [A] always ______________ with [T] and [G] always ________________ with [C]. ► This is called Chargaff’s Rule. Chargaff and Replication ► Due to Chargaff’s discovery, we now understand why DNA is able to copy itself without making _________ or __________ the order of n ...
... ► Therefore, he concluded that [A] always ______________ with [T] and [G] always ________________ with [C]. ► This is called Chargaff’s Rule. Chargaff and Replication ► Due to Chargaff’s discovery, we now understand why DNA is able to copy itself without making _________ or __________ the order of n ...
Unit 5 Review
... 15. Where is RNA found in a cell? 16. What is the sugar found in RNA? 17. Draw a picture of the monomer of RNA, called a In your picture label the following parts: ribose sugar, base, and phosphate group. group ...
... 15. Where is RNA found in a cell? 16. What is the sugar found in RNA? 17. Draw a picture of the monomer of RNA, called a In your picture label the following parts: ribose sugar, base, and phosphate group. group ...
DNA Structure, Replication and Translation Review
... 8. What are Okazaki fragments? Why is the DNA in the lagging strand synthesized in fragments rather than continuously? Okazaki fragments are the pieces of DNA that are synthesized on the lagging strand of DNA, which are later joined together to create a continuous strand of DNA. The lagging strand i ...
... 8. What are Okazaki fragments? Why is the DNA in the lagging strand synthesized in fragments rather than continuously? Okazaki fragments are the pieces of DNA that are synthesized on the lagging strand of DNA, which are later joined together to create a continuous strand of DNA. The lagging strand i ...
presentation source
... – Mismatch repair (during DNA synthesis, performed by polymerase and other enzymes) – Excision repair (after accidental changes in preexisting DNA. 50+ repair enzymes excise the incorrect sequence, which is then filled by DNA polymerase and DNA ligase) ...
... – Mismatch repair (during DNA synthesis, performed by polymerase and other enzymes) – Excision repair (after accidental changes in preexisting DNA. 50+ repair enzymes excise the incorrect sequence, which is then filled by DNA polymerase and DNA ligase) ...
Chapter 16 – The Molecular Basis of Inheritance
... DNA Replication Our analysis will focus on the DNA replication process in bacteria, however it is similar in eukaryotic cells, just a little more involved. For example Human replication utilizes 11 different DNA Polymerases vs. 2 in E. coli, higher number of replication bubbles, longer time – you g ...
... DNA Replication Our analysis will focus on the DNA replication process in bacteria, however it is similar in eukaryotic cells, just a little more involved. For example Human replication utilizes 11 different DNA Polymerases vs. 2 in E. coli, higher number of replication bubbles, longer time – you g ...
Telomere maintenance without telomerase
... observations provide new insights into the mechanism(s) by which recombination can restore telomere function in yeast, and suggest future experiments for the investigation of potentially similar pathways in human cells. Oncogene (2002) 21, 522 ± 531. DOI: 10.1038/sj/onc/ ...
... observations provide new insights into the mechanism(s) by which recombination can restore telomere function in yeast, and suggest future experiments for the investigation of potentially similar pathways in human cells. Oncogene (2002) 21, 522 ± 531. DOI: 10.1038/sj/onc/ ...
1. Explain why researchers originally thought
... 1. What does primase synthesize? A primer 2. Okazaki fragments make up which replicating strand? lagging Telomeres are special nucleotide sequences 3. _____ found at the ends of eukaryotic chromosomal DNA molecules. 4. Which proteins make up almost half of chromatin? histones 5. The less compacted, ...
... 1. What does primase synthesize? A primer 2. Okazaki fragments make up which replicating strand? lagging Telomeres are special nucleotide sequences 3. _____ found at the ends of eukaryotic chromosomal DNA molecules. 4. Which proteins make up almost half of chromatin? histones 5. The less compacted, ...
lesson viii - MisterSyracuse.com
... 8. So there is a helicase that opens up the DNA, and then other proteins like gyrases and single-strand binding proteins to keep it open. 9. This time, though, we are making only a single-stranded copy. So we only need to use one side, and there will be only one leading strand. No Okazaki fragments ...
... 8. So there is a helicase that opens up the DNA, and then other proteins like gyrases and single-strand binding proteins to keep it open. 9. This time, though, we are making only a single-stranded copy. So we only need to use one side, and there will be only one leading strand. No Okazaki fragments ...
No Slide Title
... * Topoisomerases II change the linking number in steps of 2 by passing both strands of double-stranded DNA through a break. * Eukaryotic topoisomerases isolated to date only relax supercoiled DNA, while prokaryotic topoisomerases (gyrases) can, given ATP, add supercoils. * TopoII releases catenated ...
... * Topoisomerases II change the linking number in steps of 2 by passing both strands of double-stranded DNA through a break. * Eukaryotic topoisomerases isolated to date only relax supercoiled DNA, while prokaryotic topoisomerases (gyrases) can, given ATP, add supercoils. * TopoII releases catenated ...
Biology End of Quarter 3 Quiz Name_______Key__________
... c. An ion that has an a stable electron shell, but periodically emits radiation d. An atom that has an unstable nucleus and emits energy ...
... c. An ion that has an a stable electron shell, but periodically emits radiation d. An atom that has an unstable nucleus and emits energy ...
Telomere
A telomere is a region of repetitive nucleotide sequences at each end of a chromatid, which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes. Its name is derived from the Greek nouns telos (τέλος) 'end' and merοs (μέρος, root: μερ-) 'part.' For vertebrates, the sequence of nucleotides in telomeres is TTAGGG. This sequence of TTAGGG is repeated approximately 2,500 times in humans. During chromosome replication, the enzymes that duplicate DNA cannot continue their duplication all the way to the end of a chromosome, so in each duplication the end of the chromosome is shortened (this is because the synthesis of Okazaki fragments requires RNA primers attaching ahead on the lagging strand). The telomeres are disposable buffers at the ends of chromosomes which are truncated during cell division; their presence protects the genes before them on the chromosome from being truncated instead.Over time, due to each cell division, the telomere ends become shorter. They are replenished by an enzyme, telomerase reverse transcriptase.