Heterogeneous
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  Heterogeneous



Heterogeneous

    Dissimilar in type, and having different or opposing characteristics.



SIMILAR TERMS
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HETE
Eicosatetraenoic acids substituted in any position by one or more hydroxy groups. They are important intermediates in a series of biosynthetic processes leading from arachidonic acid to a number of biologically active compounds such as prostaglandins, thromboxanes, and leukotrienes.

Heteroantibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heteroantigens
Antigens stimulating the formation of, or combining with heterophile antibodies. They are cross-reacting antigens found in phylogenetically unrelated species.

Heterocellular
Composed of more than one type of cell.

Heterochromatin
The portion of chromosome material that remains condensed and is transcriptionally inactive during INTERPHASE.

Heterochromatins
The portion of chromosome material that remains condensed and is transcriptionally inactive during INTERPHASE.

Heterochromic Cyclitides
Acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. Symptoms include radiating pain, photophobia, lacrimation, and interference with vision.

Heterochromic Cyclitis
Acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. Symptoms include radiating pain, photophobia, lacrimation, and interference with vision.

Heterocyclic Acids
A class of acids containing a ring structure in which atleast one atom other than CARBON is incorporated.

Heterocyclic Bicyclo Compounds
A class of saturated compounds consisting of two rings only, having two or more atoms in common, containing at least one hetero atom, and that take the name of an open chain hydrocarbon containing the same total number of atoms. (From Riguady et al., Nomenclature of Organic Chemistry, 1979, p31)

Heterocyclic Compounds with 4 or More Rings
A class of organic compounds containing four or more ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.

Heterocyclic Compounds, 1 Ring
A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.

Heterocyclic Compounds, 1-Ring
A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.

Heterocyclic Compounds, 2 Ring
A class of organic compounds containing two ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.

Heterocyclic Compounds, 2-Ring
A class of organic compounds containing two ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.

Heterocyclic Compounds, 3 Ring
A class of organic compounds containing three ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic

Heterocyclic Compounds, 3-Ring
A class of organic compounds containing three ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic

Heterocyclic Compounds, Bicyclic
A class of saturated compounds consisting of two rings only, having two or more atoms in common, containing at least one hetero atom, and that take the name of an open chain hydrocarbon containing the same total number of atoms. (From Riguady et al., Nomenclature of Organic Chemistry, 1979, p31)

Heterocyclic Compounds, Bridged Ring
A class of organic compounds which contain two rings that share a pair of bridgehead carbon atoms.

Heterocyclic Compounds, Bridged-Ring
A class of organic compounds which contain two rings that share a pair of bridgehead carbon atoms.

Heterocyclic Cpds, 1 Ring
A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.

Heterocyclic Cpds, 1-Ring
A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.

Heterocyclic Cpds, 3 Ring
A class of organic compounds containing three ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic

Heterocyclic Cpds, 4 or More Rings
A class of organic compounds containing four or more ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.

Heterocyclic Cpds, Bicyclic
A class of saturated compounds consisting of two rings only, having two or more atoms in common, containing at least one hetero atom, and that take the name of an open chain hydrocarbon containing the same total number of atoms. (From Riguady et al., Nomenclature of Organic Chemistry, 1979, p31)

Heterocyclic Oxides
Oxides of a ring compound having atoms other than carbon in its ring.

Heterocyclic Steroids
Steroidal compounds in which one or more carbon atoms in the steroid ring system have been substituted with non-carbon atoms.

Heterodisomies, Uniparental
The presence in a cell of two paired chromosomes from the same parent, with no chromosome of that pair from the other parent. This chromosome composition stems from non-disjunction (NONDISJUNCTION, GENETIC) events during MEIOSIS. The disomy may be composed of both homologous chromosomes from one parent (heterodisomy) or a duplicate of one chromosome (isodisomy).

Heterodisomy, Uniparental
The presence in a cell of two paired chromosomes from the same parent, with no chromosome of that pair from the other parent. This chromosome composition stems from non-disjunction (NONDISJUNCTION, GENETIC) events during MEIOSIS. The disomy may be composed of both homologous chromosomes from one parent (heterodisomy) or a duplicate of one chromosome (isodisomy).

Heteroduplex Analyses
A method of detecting gene mutation by mixing PCR-amplified mutant and wild-type DNA followed by denaturation and reannealing. The resultant products are resolved by gel electrophoresis, with single base substitutions detectable under optimal electrophoretic conditions and gel formulations. Large base pair mismatches may also be analyzed by using electron microscopy to visualize heteroduplex regions.

Heteroduplex Analysis
A method of detecting gene mutation by mixing PCR-amplified mutant and wild-type DNA followed by denaturation and reannealing. The resultant products are resolved by gel electrophoresis, with single base substitutions detectable under optimal electrophoretic conditions and gel formulations. Large base pair mismatches may also be analyzed by using electron microscopy to visualize heteroduplex regions.

Heteroduplex DNA
Double-stranded nucleic acid molecules (DNA-DNA or DNA-RNA) which contain regions of nucleotide mismatches (non-complementary). In vivo, these heteroduplexes can result from mutation or genetic recombination; in vitro, they are formed by nucleic acid hybridization. Electron microscopic analysis of the resulting heteroduplexes facilitates the mapping of regions of base sequence homology of nucleic acids.

Heteroduplexes, Nucleic Acid
Double-stranded nucleic acid molecules (DNA-DNA or DNA-RNA) which contain regions of nucleotide mismatches (non-complementary). In vivo, these heteroduplexes can result from mutation or genetic recombination; in vitro, they are formed by nucleic acid hybridization. Electron microscopic analysis of the resulting heteroduplexes facilitates the mapping of regions of base sequence homology of nucleic acids.

Heterogeneity
Qualities and characterization of various types of populations within a social or geographic group, with emphasis on demography, health status, and socioeconomic factors.

Heterogeneity, Population
Qualities and characterization of various types of populations within a social or geographic group, with emphasis on demography, health status, and socioeconomic factors.

Heterogeneous Nuclear RNA
Nuclear nonribosomal RNA larger than about 1000 nucleotides, the mass of which is rapidly synthesized and degraded within the cell nucleus. Some heterogeneous nuclear RNA may be a precursor to mRNA. However, the great bulk of total hnRNA hybridizes with nuclear DNA rather than with mRNA.

Heterogenetic Antibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heterogenetic Antigens
Antigens stimulating the formation of, or combining with heterophile antibodies. They are cross-reacting antigens found in phylogenetically unrelated species.

Heterograft
Transplantation between animals of different species.

Heterograft Bioprostheses
Prosthesis, usually heart valve, composed of biological material and whose durability depends upon the stability of the material after pretreatment, rather than regeneration by host cell ingrowth. Durability is achieved 1) mechanically by the interposition of a cloth, usually polytetrafluoroethylene, between the host and the graft, and 2) chemically by stabilization of the tissue by intermolecular linking, usually with glutaraldehyde, after removal of antigenic components, or the use of reconstituted and restructured biopolymers.

Heterograft Bioprosthesis
Prosthesis, usually heart valve, composed of biological material and whose durability depends upon the stability of the material after pretreatment, rather than regeneration by host cell ingrowth. Durability is achieved 1) mechanically by the interposition of a cloth, usually polytetrafluoroethylene, between the host and the graft, and 2) chemically by stabilization of the tissue by intermolecular linking, usually with glutaraldehyde, after removal of antigenic components, or the use of reconstituted and restructured biopolymers.

Heterograft Dressing
Human or animal tissue used as temporary wound coverings.

Heterograft Dressings
Human or animal tissue used as temporary wound coverings.

Heterografts
Transplantation between animals of different species.

Heterologous
1. Pertaining to cytologic or histologic elements occurring where they are not normally found.2. Derived from an animal of a different species, as the serum of a horse is heterologous for a rabbit.

Heterologous Antibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heterologous Antigens
Antigens stimulating the formation of, or combining with heterophile antibodies. They are cross-reacting antigens found in phylogenetically unrelated species.

Heterologous Transplantation
Transplantation between animals of different species.

Heterologous Transplantations
Transplantation between animals of different species.

Heteronuclear NMR
NMR spectroscopy on small- to medium-size biological macromolecules. This is often used for structural investigation of proteins and nucleic acids, and often involves more than one isotope.

Heteronuclear Nuclear Magnetic Resonance
NMR spectroscopy on small- to medium-size biological macromolecules. This is often used for structural investigation of proteins and nucleic acids, and often involves more than one isotope.

Heterophil Antibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heterophil Antigens
Antigens stimulating the formation of, or combining with heterophile antibodies. They are cross-reacting antigens found in phylogenetically unrelated species.

Heterophile Antibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heterophile antigen
A cross-reacting antigen that appears in widely ranging species such as humans and bacteria.

Heterophile Antigens
Antigens stimulating the formation of, or combining with heterophile antibodies. They are cross-reacting antigens found in phylogenetically unrelated species.

Heterophilia
The condition in which love and lust are attached to those of the other sex. A condition of being in which sexuoerotic arousal and facilitation or attainment of orgasm are responsive to, and dependent upon a partner of the other morphologic sex.

Heterophobia
The condition in which those whose love and lust are attached to persons of the other sex are dreaded or feared.

Heterophyes
A family of intestinal flukes of the class Trematoda which occurs in animals and man. Some of the genera are Heterophyes, Metagonimus, Cryptocotyle, Stellantchasmus, and Euryhelmis.

Heterophyidae
A family of intestinal flukes of the class Trematoda which occurs in animals and man. Some of the genera are Heterophyes, Metagonimus, Cryptocotyle, Stellantchasmus, and Euryhelmis.

Heteroplasmy
An atypical condition characterized by the presence of more than one type of mitochondrial DNA in a single individual. Normally, each individual has only one type of mitochondrial DNA, inherited from his or her mother through the egg at fertilization. (Mitochondria from the sperm are systematically eliminated by the egg at fertilization.)

Heteropneustes
Common name of the order Siluriformes. This order contains many families and over 2,000 species, including venomous species. Heteropneustes and Plotosus genera have dangerous stings and are aggressive. Most species are passive stingers.

Heteroptera
A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It includes the medically important families CIMICIDAE and REDUVIIDAE. (From Dorland, 28th ed)

Heterosexual
Characterized by other-sex contact, either as a genital act or as a long-term sexuoerotic status. It is analogous to right-handedness in being in conformity with the norm and therefore is not pathological in itself, though subject to other pathology. A heterosexual person is able to fall in love with, and become the pairbonded sexuoerotic partner of only a person of the other morphologic sex. Paraphilias occur predominantly in association with heterosexual pairing. The ideation and affective state, exclusive of the behavioral component, is heterophilia.

Heterosexualism
Other-sex contact, either as a genital act or as a long term sexuoerotic status. It is analogous to right-handedness in being in conformity with the norm and, therefore, not pathological in itself, though subject to other pathology. A heterosexual person is able to fall in love with, and become the pairbonded sexuoerotic partner of only a person of the other morphologic sex. Paraphilias occur predominantly in association with heterosexual pairing.

Heterosexuality
Erotosexual pairing with a partner of the complementary genital morphology. It's full manifestation includes falling in love.

Heterosis
The adaptive superiority of heterozygous genotypes with respect to one or more characters in comparison with the corresponding homozygotes.

Heterotopic Ossification
The development of bony substance in normally soft structures.

Heterotopic Tissue
A mass of histologically normal tissue present in an abnormal location.

Heterotopic Tissues
A mass of histologically normal tissue present in an abnormal location.

Heterotopic Transplantation
Transplantation of tissue typical of one area to a different recipient site. The tissue may be autologous, heterologous, or homologous.

Heterotopic Transplantations
Transplantation of tissue typical of one area to a different recipient site. The tissue may be autologous, heterologous, or homologous.

Heterotrimeric G Proteins
GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with members of the seven transmembrane domain superfamily of G-protein coupled receptors. The G-alpha subunit acts as a signal transduction molecule when it binds GTP and dissociates from the heterotrimer. Hydrolysis of GTP by the inherent GTPase activity of the protein causes it to revert to its inactive (heterotrimeric) form. EC 3.6.1.-.

Heterotrimeric G-Proteins
GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with members of the seven transmembrane domain superfamily of G-protein coupled receptors. The G-alpha subunit acts as a signal transduction molecule when it binds GTP and dissociates from the heterotrimer. Hydrolysis of GTP by the inherent GTPase activity of the protein causes it to revert to its inactive (heterotrimeric) form. EC 3.6.1.-.

Heterotrimeric GTP Binding Proteins
GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with members of the seven transmembrane domain superfamily of G-protein coupled receptors. The G-alpha subunit acts as a signal transduction molecule when it binds GTP and dissociates from the heterotrimer. Hydrolysis of GTP by the inherent GTPase activity of the protein causes it to revert to its inactive (heterotrimeric) form. EC 3.6.1.-.

Heterotrimeric GTP-Binding Proteins
GTP-BINDING PROTEINS that contain three non-identical subunits. They are found associated with members of the seven transmembrane domain superfamily of G-protein coupled receptors. The G-alpha subunit acts as a signal transduction molecule when it binds GTP and dissociates from the heterotrimer. Hydrolysis of GTP by the inherent GTPase activity of the protein causes it to revert to its inactive (heterotrimeric) form. EC 3.6.1.-.

Heterotypic Antibodies
Antibodies elicited in a different species from which the antigen originated. These antibodies are directed against a wide variety of interspecies-specific antigens, the best known of which are Forssman, Hanganutziu-Deicher (H-D), and Paul-Bunnell (P-B). Incidence of antibodies to these antigens--i.e., the phenomenon of heterophile antibody response--is useful in the serodiagnosis, pathogenesis, and prognosis of infection and latent infectious states as well as in cancer classification.

Heterovitamin B 1
A thiamine antagonist due to its inhibition of thiamine pyrophosphorylation. It is used to produce thiamine deficiency.

Heterozygosity Loss
The loss of one allele at a specific locus, caused by a deletion mutation; or loss of a chromosome from a chromosome pair. It is detected when heterozygous markers for a locus appear monomorphic because one of the alleles was deleted. When this occurs at a tumor suppressor gene locus where one of the alleles is already abnormal, it can result in neoplastic transformation.

Heterozygosity, Loss of
The loss of one allele at a specific locus, caused by a deletion mutation; or loss of a chromosome from a chromosome pair. It is detected when heterozygous markers for a locus appear monomorphic because one of the alleles was deleted. When this occurs at a tumor suppressor gene locus where one of the alleles is already abnormal, it can result in neoplastic transformation.

Heterozygote
An individual having different alleles at one or more loci in homologous chromosome segments.

Heterozygote Detection
Identification of genetic carriers for a given trait.

Heterozygote Detections
Identification of genetic carriers for a given trait.

Heterozygotes
An individual having different alleles at one or more loci in homologous chromosome segments.



PREVIOUS AND NEXT TERMS
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Hypervariable regions
Portions of the light and heavy immunoglobulin chains that are highly variable in amino acid sequence from one immunoglobulin molecule to another, and that, together, constitute the antigen-binding site of an antibody molecule. Also, portions of the T-cell receptor which constitute the antigen-binding site.

Hallucinosis
A morbid condition, as in acute alcoholic hallucinosis, which is characterized by recurrent acute attacks marked by hallucinated auditory threats of persecution.

Haptic
Having to do with touch and the sense of touch. 2. Pertaining to the skin feelings and the sense of touch.

Hemisphere
As applied to the brain, either its left or its right half.

Hermaphroditism
Having genital attributes of both sexes. Some invertebrates are simultaneous hermaphrodites, and some fish are sequential hermaphrodites that change from male to female, or vice versa, once or more often in the course of a lifetime. In the human species, hermaphroditism is a form of birth defect, also known as intersexuality. It is defined as male or female hermaphroditism, if only testes or ovaries are present, respectively; as true hermaphroditism if both tissues are found as in ovotestes, and as gonadally dysgenic [dysgenetic?] when neither tissue is clearly differentiated. Human hermaphrodites do not have the complete sex organs of both sexes. A congenital condition of ambiguity of the reproductive structures so that the sex of the individual at birth is not clearly defined as exclusively male or exclusively female. The condition is named for Hermes and Aphrodite, the Greek god and goddess of love.

Heterogeneous

Heterophilia
The condition in which love and lust are attached to those of the other sex. A condition of being in which sexuoerotic arousal and facilitation or attainment of orgasm are responsive to, and dependent upon a partner of the other morphologic sex.

Heterophobia
The condition in which those whose love and lust are attached to persons of the other sex are dreaded or feared.

Heterosexual
Characterized by other-sex contact, either as a genital act or as a long-term sexuoerotic status. It is analogous to right-handedness in being in conformity with the norm and therefore is not pathological in itself, though subject to other pathology. A heterosexual person is able to fall in love with, and become the pairbonded sexuoerotic partner of only a person of the other morphologic sex. Paraphilias occur predominantly in association with heterosexual pairing. The ideation and affective state, exclusive of the behavioral component, is heterophilia.

Heterosexualism
Other-sex contact, either as a genital act or as a long term sexuoerotic status. It is analogous to right-handedness in being in conformity with the norm and, therefore, not pathological in itself, though subject to other pathology. A heterosexual person is able to fall in love with, and become the pairbonded sexuoerotic partner of only a person of the other morphologic sex. Paraphilias occur predominantly in association with heterosexual pairing.

Heterosexuality
Erotosexual pairing with a partner of the complementary genital morphology. It's full manifestation includes falling in love.

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