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DNA can be twisted like a rope in a process called DNA supercoiling. With DNA in its "relaxed" state, a strand usually circles the axis of the double helix once every 10.4 base pairs, but if the DNA is twisted the strands become more tightly or more loosely wound. [43]
DNA is a macromolecule made up of nucleotide units, which are linked by covalent bonds and hydrogen bonds, in a repeating structure. DNA synthesis occurs when these nucleotide units are joined to form DNA; this can occur artificially (in vitro) or naturally (in vivo). Nucleotide units are made up of a nitrogenous base (cytosine, guanine ...
Genomics is an interdisciplinary field of molecular biology focusing on the structure, function, evolution, mapping, and editing of genomes.A genome is an organism's complete set of DNA, including all of its genes as well as its hierarchical, three-dimensional structural configuration.
The video channels on Youtube have been selected because they have subtitle options which greatly aid the learning process. The suggestion is to auto translate videos as you're watching them into English, slow down to 50-75% pace and click the bottom right column for a transcript in the target language so you can view both languages as the ...
DNA can be copied very easily and accurately because each piece of DNA can direct the assembly of a new copy of its information. This is because DNA is made of two strands that pair together like the two sides of a zipper. The nucleotides are in the center, like the teeth in the zipper, and pair up to hold the two strands together.
The Language Learning Centre, established in July 2021, is a place for editors who may frequently translate articles from other Wikipedias and use a variety of different languages sources to develop their skills so that they can at least improve their understanding of text on another language Wikipedia and not solely rely on automated translation.
Who We Are and How We Got Here is a 2018 book on the contribution of genome-wide ancient DNA research to human population genetics by the geneticist David Reich.He describes discoveries made by his group and others, based on analysis and comparison of ancient and modern DNA from human populations around the world.
In the field of second-language acquisition, extramural English (EE) is English that learners come in contact with or are involved in outside the walls of the classroom, [1] often through streaming media and online games. [2] [3] It is an example of informal learning of English.