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4.1 Le Noyau
4.1 Le Noyau

... • Genes can be composed of hundreds or thousands nitrogen bases. • Produces a particular trait. • Each chromosome is made up of thousands of genes. • Therefore, can produce thousands of ...
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Slide () - Journal of Speech, Language, and Hearing Research

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Cloze passage 3
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... p) A biologist who worked with fruit fly to identify sex-linkage q) The features or traits of an organism are controlled by both genes and the ……………. r) The base complementary to thymine s) A model we used to represent chromosomes t) A biological name for a family tree u) A colourblind male need onl ...
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Gen677_Week5a_HGT_2012
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Project proposal MSc in Computational Genetics and Bioinformatics

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Helitron (biology)

A helitron is a transposon found in eukaryotes that is thought to replicate by a so-called ""rolling-circle"" mechanism. This category of transposons was discovered by Vladimir Kapitonov and Jerzy Jurka in 2001. The rolling-circle process begins with a break being made at the terminus of a single strand of the helitron DNA. Transposase then sits at this break and at another break where the helitron targets as a migration site. The strand is then displaced from its original location at the site of the break and attached to the target break, forming a circlular heteroduplex. This heteroduplex is then resolved into a flat piece of DNA via replication. During the rolling-circle process, DNA can be replicated beyond the initial helitron sequence, resulting in the flanking regions of DNA being ""captured"" by the helitron as it moves to a new location.
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