phosphorus - Sacred Heart Academy
... complementary bases • Replication occurs in the 5‘ to 3‘ direction (lead strand and lag strand); bases can only be added to the 3’ end of the growing DNA molecule • Other enzymes correct errors, remove primers, seal “nicks” in the backbone ...
... complementary bases • Replication occurs in the 5‘ to 3‘ direction (lead strand and lag strand); bases can only be added to the 3’ end of the growing DNA molecule • Other enzymes correct errors, remove primers, seal “nicks” in the backbone ...
... the genome. Since the last century the replicon model has been proposed in order to explain the general mechanism of genome duplication in bacteria. Later work in yeast lead to identifying proteins and dna sequences that participate in the initiation of replication in a similar fashion to what has b ...
Book 11.5 HB Questions
... 5. The process of joining exons together to form an mRNA molecule is called _________________________. 6. During transcription, the _________________________ between base pairs are broken. 7. A mutation will cause the cell to make an incomplete polypeptide if the mutation results in a(an) __________ ...
... 5. The process of joining exons together to form an mRNA molecule is called _________________________. 6. During transcription, the _________________________ between base pairs are broken. 7. A mutation will cause the cell to make an incomplete polypeptide if the mutation results in a(an) __________ ...
MS Word File
... Polymerase has ability to recognize a mismatch and remove last base Can continue down strand, but slowly Mutation and DNA Repair Mutation-change in DNA sequence Can happen naturally during replication when mismatch is not recognized 1 in 100,000 bases incorrectly added 99% of these are corrected by ...
... Polymerase has ability to recognize a mismatch and remove last base Can continue down strand, but slowly Mutation and DNA Repair Mutation-change in DNA sequence Can happen naturally during replication when mismatch is not recognized 1 in 100,000 bases incorrectly added 99% of these are corrected by ...
1chap10guidedreading
... 11. What is an origin of replication? What does it have to do with a replication fork? ...
... 11. What is an origin of replication? What does it have to do with a replication fork? ...
1chap10guidedreading
... 11. What is an origin of replication? What does it have to do with a replication fork? ...
... 11. What is an origin of replication? What does it have to do with a replication fork? ...
Micro Quiz #3R Stu F2011 - the Biology Scholars Program Wiki
... 4. AT-rich DNA strands will denature (separate) at a(n): A. Higher temperature than GC-rich DNA B. Identical temperature as GC-rich DNA C. Similar temperature as GC-rich DNA, with minor variations D. Lower temperature than GC-rich DNA E. Temperature dependent upon whether it is from a prokaryote or ...
... 4. AT-rich DNA strands will denature (separate) at a(n): A. Higher temperature than GC-rich DNA B. Identical temperature as GC-rich DNA C. Similar temperature as GC-rich DNA, with minor variations D. Lower temperature than GC-rich DNA E. Temperature dependent upon whether it is from a prokaryote or ...
GEN2MHG – MOLECULAR AND HUMAN GENETICS DNA is made
... ▪ DNA synthesis requires single stranded DNA template ▪ a protein complex origins of replication are rich in A/T (only two hydrogen bonds, therefore easier to separate than G/C rich areas) ▪ multiple replication origins Replication occurs in two directions but is semi-discontinuous due to both stran ...
... ▪ DNA synthesis requires single stranded DNA template ▪ a protein complex origins of replication are rich in A/T (only two hydrogen bonds, therefore easier to separate than G/C rich areas) ▪ multiple replication origins Replication occurs in two directions but is semi-discontinuous due to both stran ...
Exam Review 2B -- Rodermel
... Joins Okazaki fragments by sealing breaks in the sugar-phosphate backbone of newly synthesized DNA Attach to single-stranded DNA and prevent secondary structures from forming Unwinds DNA at replication fork ...
... Joins Okazaki fragments by sealing breaks in the sugar-phosphate backbone of newly synthesized DNA Attach to single-stranded DNA and prevent secondary structures from forming Unwinds DNA at replication fork ...
AP Bio Ch 17 The Molecular Basis of Disease This chapter is only
... 22. What does topo-isomerase do? 23. What does single-stranded binding protein do? p.305 24. Since the replication machine is stationary what is it anchored to? 25. What does extrude mean? 26. What proofreads the DNA after it is made? 27. What does proofreading have to do with cancer? 28. How many D ...
... 22. What does topo-isomerase do? 23. What does single-stranded binding protein do? p.305 24. Since the replication machine is stationary what is it anchored to? 25. What does extrude mean? 26. What proofreads the DNA after it is made? 27. What does proofreading have to do with cancer? 28. How many D ...
DNA Replication and Repair
... Leading strand - DNA pol III – adds nucleotides towards the replication fork; - DNA pol I - replaces RNA with DNA Lagging strand - DNA pol III - adds Okazaki fragments to free 3’ end away from replication fork - DNA pol I - replaces RNA with DNA - DNA ligase – joins Okazaki fragments to create a con ...
... Leading strand - DNA pol III – adds nucleotides towards the replication fork; - DNA pol I - replaces RNA with DNA Lagging strand - DNA pol III - adds Okazaki fragments to free 3’ end away from replication fork - DNA pol I - replaces RNA with DNA - DNA ligase – joins Okazaki fragments to create a con ...
DNA polymerase I
... Overview of DNA Synthesis DNA polymerases synthesize new strands in 5’ to 3’ direction. Primase makes RNA primer. Lagging strand DNA consists of Okazaki fragments. In E. coli, pol I fills in gaps in the lagging strand and removes RNA primer. Fragments are joined by DNA ...
... Overview of DNA Synthesis DNA polymerases synthesize new strands in 5’ to 3’ direction. Primase makes RNA primer. Lagging strand DNA consists of Okazaki fragments. In E. coli, pol I fills in gaps in the lagging strand and removes RNA primer. Fragments are joined by DNA ...
Dna rEPLICATION - Manning`s Science
... The lagging strand takes longer to replicate than the leading strand because it involves more steps and is not continuous replication. ...
... The lagging strand takes longer to replicate than the leading strand because it involves more steps and is not continuous replication. ...
NAME CH. 8 HONORS STUDY GUIDE SCIENTISTS: Hershey
... 12. What is the job of the mRNA? 13. What is the job of rRNA? 14. What is the job of tRNA? 15. What RNA molecules are involved in protein synthesis? 16. Which RNA molecule functions as the blueprint of the genetic code? 17. Where is mRNA edited? Explain what is removed & what is put back together. 1 ...
... 12. What is the job of the mRNA? 13. What is the job of rRNA? 14. What is the job of tRNA? 15. What RNA molecules are involved in protein synthesis? 16. Which RNA molecule functions as the blueprint of the genetic code? 17. Where is mRNA edited? Explain what is removed & what is put back together. 1 ...
Code DNA!
... This is the process of copying DNA to RNA. The process of nuclear division in cells that produces daughter cells that are genetically identical to each other and to the parent cell. ...
... This is the process of copying DNA to RNA. The process of nuclear division in cells that produces daughter cells that are genetically identical to each other and to the parent cell. ...
molecular genetics unit review
... c) Watson and Crick d) Meselson and Stahl Describe the structure of DNA. Include terms like anti-parallel, nucleotide (phosphate, sugar, nitrogenous base), 3’ and 5’ end, hydrogen bonds, complementary base pairing and phosphodiester bonds in your description. Provide the functions of the following e ...
... c) Watson and Crick d) Meselson and Stahl Describe the structure of DNA. Include terms like anti-parallel, nucleotide (phosphate, sugar, nitrogenous base), 3’ and 5’ end, hydrogen bonds, complementary base pairing and phosphodiester bonds in your description. Provide the functions of the following e ...
Chapter 16 Reading Questions What were the 2 candidates for the
... 16. Explain how tRNA helps to build amino acids. Use codon, mRNA, anticodon and ribosome in your answer. ...
... 16. Explain how tRNA helps to build amino acids. Use codon, mRNA, anticodon and ribosome in your answer. ...
Molecular Biology Chapter 10: DNA – Replication and Protein
... 10.3 DNA as a Double-Helix 1. Describe the structure of DNA. What holds the two strands together? 10.4 and 10.5 DNA Replication 1. Describe in brief how DNA is replicated. How does complementary base pairing make possible the replication of DNA? 2. Explain in detail how DNA is replicated, starting f ...
... 10.3 DNA as a Double-Helix 1. Describe the structure of DNA. What holds the two strands together? 10.4 and 10.5 DNA Replication 1. Describe in brief how DNA is replicated. How does complementary base pairing make possible the replication of DNA? 2. Explain in detail how DNA is replicated, starting f ...
Replisome
The replisome is a complex molecular machine that carries out replication of DNA. The replisome first unwinds double stranded DNA into two single strands. For each of the resulting single strands, a new complementary sequence of DNA is synthesized. The net result is formation of two new double stranded DNA sequences that are exact copies of the original double stranded DNA sequence.In terms of structure, the replisome is composed of two replicative polymerase complexes, one of which synthesizes the leading strand, while the other synthesizes the lagging strand. The replisome is composed of a number of proteins including helicase, RFC, PCNA, gyrase/topoisomerase, SSB/RPA, primase, DNA polymerase I, RNAse H, and ligase.