Search results
May 2, 2024 · Learn how DNA replication copies the genetic material of a cell before division. Discover the enzymes, structures, and stages involved in this vital process.
- Regina Bailey
Learn how DNA replication is semiconservative and how DNA polymerases, primase, helicase, and other enzymes work together to copy DNA in E. coli. See how leading and lagging strands, Okazaki fragments, and proofreading are involved in DNA replication.
- Is topoisomerase same as DNA gyrase ?DNA Gyrase is a topoisomerase. There are several kinds
- In the last section "DNA replication in Eukaryotes" it says that in eukaryote cells a little DNA at ...At the ends of DNA strands there is a section non-coding nucleotides that we call a telomere. The telomere is what gets shorter every time a cell d...
- How are the histone proteins taken care of during eukaryotic DNA replication?The DNA is first unwound at origins of replication and the displaced histone proteins move onto to other parts of the DNA that haven't been unwound...
- The part of the article that deals with the Okazaki-fragments states that: "DNA polymerase I and DNA...Yep, that was a typo! I've fixed it now and it should be corrected on the site shortly. Thanks for noticing!
- "Many DNA have proofreading activity" mentions : "In most cases, the correct nucleotide is indeed ad...The key word is the "usually." The reaction won't occur with a mis-paired base in most cases. However, about 1 in 10^5 base pairs will involve an i...
- Why are the DNA polymerases numbered here? (I/II/III) I though that Eu-k were named by alpha beta de...Prokaryotes have DNA polymerases I, II, III, eukaryotes have alpha, delta, epsilon and such.
- In the paragraph 'DNA polymerases' it says that polymerase II has a DNA repair function, but in 'Man...Great question! Yes, DNA polymerase II is involved in repair of damage that occurs outside the context of DNA replication, such as cross-links betw...
- 'A DNA molecule “unzips” as the hydrogen bonds between bases are broken, separating the two strands....Helicase enzyme. It binds at replication initiation site and moves along DNA, in front of polymerase III, opening replication fork.
- Genome refers to the haploid content of DNA in a cell, so how can it consist of 3 billion base PAIRS...Most DNA exists as a double-stranded DNA in a double helix — the strands are held together by base pairs and we usually think of this as a single m...
- What direction does DNA synthesis happen? 5' to 3' or opposite? Also, what direction is leading and ...I found this on Nature.com: “DNA is always synthesized in the 5'-to-3' direction, meaning that nucleotides are added only to the 3' end of the grow...
Jun 1, 2020 · Learn how DNA replication occurs during cellular division, where two identical molecules of DNA are created from a single molecule of DNA. Understand the structure, process, and proteins of DNA replication, as well as the terms leading strand and lagging strand.
The replication fork is a structure that forms within the long helical DNA during DNA replication. It is produced by enzymes called helicases that break the hydrogen bonds that hold the DNA strands together in a helix. The resulting structure has two branching "prongs", each one made up of a single strand of DNA.
Mar 17, 2022 · Figure 9.2.1 9.2. 1: The two strands of DNA are complementary, meaning the sequence of bases in one strand can be used to create the correct sequence of bases in the other strand. Because of the complementarity of the two strands, having one strand means that it is possible to recreate the other strand.
People also ask
Why does DNA replication occur so quickly?
What are the three stages of DNA replication?
What are the three steps of DNA replication?
How do proteins and enzymes carry out replication?
Learn how cells copy their DNA precisely using three steps: separation, priming, and assembly. See how DNA polymerase, helicase, and primase work together to produce two identical DNA molecules.
Learn about the structure and function of DNA, the double helix, and the process of semi-conservative replication. See examples, diagrams, and common mistakes to avoid.
