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Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in plants.

Any of the processes by which cytoplasmic factors influence the differential control of gene action in viruses.

The change in gene frequency in a population due to migration of gametes or individuals (ANIMAL MIGRATION) across population barriers. In contrast, i…

The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION.

The GENETIC RECOMBINATION of the parts of two or more GENES resulting in a gene with different or additional regulatory regions, or a new chimeric ge…

A large collection of DNA fragments cloned (CLONING, MOLECULAR) from a given organism, tissue, organ, or cell type. It may contain complete genomic s…

The sequential location of genes on a chromosome.

The total genetic information possessed by the reproductive members of a POPULATION of sexually reproducing organisms.

The ordered rearrangement of gene regions by DNA recombination such as that which occurs normally during development.

Ordered rearrangement of T-cell variable gene regions coding for the alpha-chain of antigen receptors.

Ordered rearrangement of B-lymphocyte variable gene regions coding for the IMMUNOGLOBULIN CHAINS, thereby contributing to antibody diversity. It occu…

Ordered rearrangement of B-lymphocyte variable gene regions of the IMMUNOGLOBULIN HEAVY CHAINS, thereby contributing to antibody diversity. It occurs…

Ordered rearrangement of B-lymphocyte variable gene regions coding for the kappa or lambda IMMUNOGLOBULIN LIGHT CHAINS, thereby contributing to antib…

Ordered rearrangement of T-cell variable gene regions coding for the beta-chain of antigen receptors.

Ordered rearrangement of T-cell variable gene regions coding for the delta-chain of antigen receptors.

Ordered rearrangement of T-cell variable gene regions coding for the gamma-chain of antigen receptors.

Ordered rearrangement of T-cell variable gene regions coding for the antigen receptors.

Interacting DNA-encoded regulatory subsystems in the GENOME that coordinate input from activator and repressor TRANSCRIPTION FACTORS during developme…

Interruption or suppression of the expression of a gene at transcriptional or translational levels.

The naturally occurring transmission of genetic information between organisms, related or unrelated, circumventing parent-to-offspring transmission. …

The combined effects of genotypes and environmental factors together on phenotypic characteristics.

A category of nucleic acid sequences that function as units of heredity and which code for the basic instructions for the development, reproduction, …

Retrovirus-associated DNA sequences (abl) originally isolated from the Abelson murine leukemia virus (Ab-MuLV). The proto-oncogene abl (c-abl) codes …

Tumor suppressor genes located in the 5q21 region on the long arm of human chromosome 5. The mutation of these genes is associated with familial aden…

Regulatory genes which encode a cyclic AMP receptor protein required for L-arabinose utilization in E. coli. It is an example of positive control or …

The functional genetic units of ARCHAEA.

The functional hereditary units of BACTERIA.

The B-cell leukemia/lymphoma-1 genes, associated with various neoplasms when overexpressed. Overexpression results from the t(11;14) translocation, w…

The B-cell leukemia/lymphoma-2 genes, responsible for blocking apoptosis in normal cells, and associated with follicular lymphoma when overexpressed.…

A tumor suppressor gene (GENES, TUMOR SUPPRESSOR) located on human CHROMOSOME 17 at locus 17q21. Mutations of this gene are associated with the forma…