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  2. Gene expression - Wikipedia

    en.wikipedia.org/wiki/Gene_expression

    Regulation of gene expression gives control over the timing, location, and amount of a given gene product (protein or ncRNA) present in a cell and can have a profound effect on the cellular structure and function. Regulation of gene expression is the basis for cellular differentiation, development, morphogenesis and the versatility and ...

  3. DNA annotation - Wikipedia

    en.wikipedia.org/wiki/DNA_annotation

    An example Gene Ontology (GO) ancestor chart organized as a directed acyclic graph taken from QuickGO. [39] It shows the molecular functions, biological processes, and cellular components in which the matrilin complex, a component of the extracellular matrix, is involved. Every box is an ontology term that falls into one of the three GO ...

  4. Gene expression profiling - Wikipedia

    en.wikipedia.org/wiki/Gene_expression_profiling

    In the field of molecular biology, gene expression profiling is the measurement of the activity (the expression) of thousands of genes at once, to create a global picture of cellular function. These profiles can, for example, distinguish between cells that are actively dividing, or show how the cells react to a particular treatment.

  5. Regulation of gene expression - Wikipedia

    en.wikipedia.org/wiki/Regulation_of_gene_expression

    Regulation of gene expression, or gene regulation, [1] includes a wide range of mechanisms that are used by cells to increase or decrease the production of specific gene products (protein or RNA). Sophisticated programs of gene expression are widely observed in biology, for example to trigger developmental pathways, respond to environmental ...

  6. Central dogma of molecular biology - Wikipedia

    en.wikipedia.org/wiki/Central_dogma_of_molecular...

    This is the simplistic DNA → RNA → protein pathway published by James Watson in the first edition of The Molecular Biology of the Gene (1965). Watson's version differs from Crick's because Watson describes a two-step (DNA → RNA and RNA → protein) process as the central dogma. [ 7 ]

  7. DNA microarray - Wikipedia

    en.wikipedia.org/wiki/DNA_microarray

    How to use a microarray for genotyping. The video shows the process of extracting genotypes from a human spit sample using microarrays. Genotyping is a major use of DNA microarrays, but with some modifications they can also be used for other purposes such as measurement of gene expression and epigenetic markers.

  8. Regulatory sequence - Wikipedia

    en.wikipedia.org/wiki/Regulatory_sequence

    Cis-regulatory DNA sequences that are located in DNA regions distant from the promoters of genes can have very large effects on gene expression, with some genes undergoing up to 100-fold increased expression due to such a cis-regulatory sequence. [3] These cis-regulatory sequences include enhancers, silencers, insulators and tethering elements. [4]

  9. Functional genomics - Wikipedia

    en.wikipedia.org/wiki/Functional_genomics

    A more focused functional genomics approach might test the function of all variants of one gene and quantify the effects of mutants by using sequencing as a readout of activity. Together these measurement modalities endeavor to quantitate the various biological processes and improve our understanding of gene and protein functions and interactions.

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