DNA
The area in a DNA molecule where unwinding is occurring is called a replication fork. In the diagram, it looks like an upside-down Y. ... The new DNA strand is shorter than the template strand. As a result of the inability of DNA polymerase to initiate synthesis, the DNA molecule becomes shorter with each cell division.
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Because of this, the telomere becomes shorter and shorter as DNA replication repeats. This problem is known as the linear DNA replication paradox. When the telomere becomes too short, the DNA molecule will stop to replicate and the cell cannot divide anymore.
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DNA replication - Wikipedia, the free encyclopedia
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DNA replication , the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "semiconservative" in that each strand of the ori...
en.wikipedia.org/wiki/DNA_replication
ii. enhances the separation of DNA strands during replication ... d. experience a gradual reduction of chromosome length with each replication cycle...
www.humboldt.edu/~pls13/105exam3key.html
feature Ten years of tension: single-molecule DNA mechanics ... The basic features of DNA were elucidated during the half-century following the discovery of the double helix. But it is only during the past decade that researchers have been able to manipulate single molecules of DNA to make direct measurements of its...
www.nature.com/nature/journal/v421/n6921/full/nature014... www.nature.com/nature/journal/v421/n6921/full/nature01405.html
When the replication process is complete, two DNA molecules — identical to each other and identical to the original — have been produced. Each strand of the original molecule has ... This mode of replication is described as semi-conservative: one-half of each new molecule of DNA is old; one-half new.
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Although DNA replication and cellular division are also important processes, this unit will explore protein synthesis. Students who can grasp the central dogma of molecular biology and the genetic code are those who are truly starting to make sense of this amazing molecule. ... Each codon codes for either a function (start,
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During the 1920s, biochemist P.A. Levene analyzed the components of the DNA molecule. ... 2. Semiconservative replication would produce two DNA molecules, each of which was composed of one-half of the parental DNA along with an entirely new complementary strand. In other words the new DNA would consist of one new and one...
www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDNAMO... www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDNAMOLGEN.html
The sticking was a result of small, oily patches found on the ends of the short DNA segments that help them adhere to each other in a reversible way -- much like magnetic buttons -- as they expelled water in between them, Clark said.
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We have detected a small DNA molecule (sa-DNA), ... Replication of the woodchuck hepatitis virus (WHV) genome requires the synthesis of minus-strand DNA from an RNA template, the pregenome, by reverse transcription. During this reaction, the 5' end of minus-strand DNA becomes covalently linked to a protein.
lib.bioinfo.pl/pmid:6298717