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Reverse transcription is the transfer of information from RNA to DNA (the reverse of normal transcription). This is known to occur in the case of retroviruses, such as HIV, as well as in eukaryotes, in the case of retrotransposons and telomere synthesis. It is the process by which genetic information from RNA gets transcribed into new DNA.
Gene flow is the transfer of alleles from one population to another population through immigration of individuals. In population genetics, gene flow (also known as migration and allele flow) is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 December 2024. Science of genes, heredity, and variation in living organisms This article is about the general scientific term. For the scientific journal, see Genetics (journal). For a more accessible and less technical introduction to this topic, see Introduction to genetics. For the Meghan Trainor ...
All of these processes form part of the central dogma of molecular biology, which describes the flow of genetic information in a biological system. As in DNA, genetic information in mRNA is contained in the sequence of nucleotides, which are arranged into codons consisting of three ribonucleotides each.
The flow of genetic information within a cell. DNA is initially transcribed into a messenger RNA (mRNA) molecule. The mRNA is then translated into a protein. (See Central dogma of molecular biology.) mRNA structure, approximately to scale for a human mRNA
Added ingredients in food can also alter the flow of genetic information inside cells. Breads and cereals are enriched with folate to prevent birth defects caused by deficiencies of this nutrient ...
This information is the instructions for the construction and operation of a living organism. The information within a particular gene is not always exactly the same between one organism and another, so different copies of a gene do not always give exactly the same instructions. Each unique form of a single gene is called an allele. As an ...
Information processing and information flow occur in the course of an organism's development and throughout its lifespan. [2] The essence of computation is information processing, and the essence of biological information processing is control of the molecular events inside a cell. [3]