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What is the first step in the process of DNA replication?
The first step in the processof DNA replication is the initiation. This process take part in particular points in the DNA rich in adenine and thymine bases (origins), which are...
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Template-dependent DNA synthesis takes place during DNA replication.what are the requirements for a DNA strand to act as template?
DNA strands may act as templates only during specialphase of cell cycle called S-phase, so cell should be in that phase of growth. To perform replication itself, a huge number...
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Outline steps involved in DNA synthesis at the replication fork. How do DNA polymerase correct their mistakes?
Proofreading is a mechanism by which DNA polymerase corrects replication mistakes. Enzyme recognizes imperfection between newly paired nucleotides, deletes the last nucleotide and adds the correct one. As a result...
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The enzyme responsible for initiating DNA replication in prokaryotes is:
1. DNA polymerase I
2. DNA polymerase III
3. Polymerase beta
4. Primase
The initiation of the replication process is done by the primase. The primase synthesizes RNA primer for DNA polymerase III, so it can begin the replication process. The right answer...
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In what way that DNA replication in E. coli shares the profound common ground with DNA replication in human?
E. coli, as most microscopic organisms (bacteria), has a single origin of replication on its chromosome. As the DNA opens, two Y-molded designs called replication forks are framed, together making...
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if the DNA Polymerase III enzyme were to be able to read the DNA template in both the 3’ to 5’ and the 5’ to 3’ directions, suggest how different the DNA replication process will be?
Since DNA polymerase requires a free 3' OH group for initiation of synthesis, it can synthesize in only one direction by extending the 3' end of the preexisting nucleotide chain....
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Definition of cryptic satellite DNA: A satellite DNA sequence that cannot be separated from the main-band DNA by density gradient ultracentrifugation.
What's the meaning of main-band DNA.?
Main-band DNA is the DNA sequences, which do not contain the satellite DNA or other repeated sequences. It is the empirical name, which was given to bands on electrophoregram, which...
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1 How many replication forks are in bacteria?
2 how many replication forks are in one replication bubble?
1. The bacterial chromosome has commonly one origin of replication. However, the replication occurs in both directions from the origin. As a result, there are two forks of replication in...
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1 What is the difference between dna ligase dna pol I and dna pol delta
2 does okazaki fragments joining begin during replication or after the end of elongation of replication?!
1. DNA ligase is an enzyme that catalyzes the formation of a phosphodiester bond between two DNA strands joining them together. DNA ligase is present in eukaryotes and prokaryotes and...
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1. Given: 2Al(s) + Fe2O3(s) à Al2O3(s) + 2Fe(l) Step 1 is done!
How many grams of Fe2O3 are needed to produce 6.7 g of Fe?
Step 2: Mass to moles
Step 3: Mole to Mole (Ratio)
Step 4: Mole to Mass
2Al(s) + Fe2O3(s) = Al2O3(s) + 2Fe(l)n=m/MM (Fe) = 55.9 g/molM (Fe2O3) = 159.7 g/moln (Fe)=6.7/55.9 = 0.12 moln (Fe2O3) = 1/2 x n (Fe) = 1/2 x 0.12 =...
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