Gene and Lac operon

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Difference between Gene and Lac operon

Gene vs. Lac operon

In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function. The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria.

Activator (genetics)

A transcriptional activator is a protein (transcription factor) that increases gene transcription of a gene or set of genes.

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Bacillus subtilis

Bacillus subtilis, known also as the hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium, found in soil and the gastrointestinal tract of ruminants and humans.

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Cell (biology)

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.

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Cistron

A cistron is an alternative term to a gene.

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Enzyme

Enzymes are macromolecular biological catalysts.

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Escherichia coli

Escherichia coli (also known as E. coli) is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms).

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Journal of Molecular Biology

The Journal of Molecular Biology is a peer-reviewed scientific journal published weekly by Elsevier.

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Lactose

Lactose is a disaccharide.

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Messenger RNA

Messenger RNA (mRNA) is a large family of RNA molecules that convey genetic information from DNA to the ribosome, where they specify the amino acid sequence of the protein products of gene expression.

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Metabolism

Metabolism (from μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms.

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Operon

In genetics, an operon is a functioning unit of DNA containing a cluster of genes under the control of a single promoter.

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Prokaryote

A prokaryote is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.

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Promoter (genetics)

In genetics, a promoter is a region of DNA that initiates transcription of a particular gene.

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Regulation of gene expression

Regulation of gene expression includes a wide range of mechanisms that are used by cells to increase or decrease the production of specific gene products (protein or RNA), and is informally termed gene regulation.

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RNA polymerase

RNA polymerase (ribonucleic acid polymerase), both abbreviated RNAP or RNApol, official name DNA-directed RNA polymerase, is a member of a family of enzymes that are essential to life: they are found in all organisms (-species) and many viruses.

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Terminator (genetics)

In genetics, a transcription terminator is a section of nucleic acid sequence that marks the end of a gene or operon in genomic DNA during transcription.

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Translation (biology)

In molecular biology and genetics, translation is the process in which ribosomes in the cytoplasm or ER synthesize proteins after the process of transcription of DNA to RNA in the cell's nucleus.

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