homologous


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

homologous

, homological, homologic
1. Chem (of a series of organic compounds) having similar characteristics and structure but differing by a number of CH2 groups
2. Med
a. (of two or more tissues) identical in structure
b. (of a vaccine) prepared from the infecting microorganism
3. Biology (of organs and parts) having the same evolutionary origin but different functions
4. Maths (of elements) playing a similar role in distinct figures or functions
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

homologous

[hə′mäl·ə·gəs]
(biology)
Pertaining to a structural relation between parts of different organisms due to evolutionary development from the same or a corresponding part, such as the wing of a bird and the pectoral fin of a fish.
(geology)
Referring to strata, in separated areas, that are correlatable (contemporaneous) and are of the same general character or facies, or occupy analogous structural positions along the strike.
Pertaining to faults, in separated areas, that have the same relative position or structure.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?
References in periodicals archive ?
486) into the controversy over homologous versus antithetic alternation.
Homologous versus antithetic alternation of generations and the origin of sporophytes
Through a process of 'crossing over', the segments of non-sister chromatids of a homologous pair of homologous dyads are exchanged.
Origin of genetic information and evolution of biological species
These experiments were carried out with sperm concentrations of the homologous species high enough that over 90% of the eggs were routinely fertilized in the controls.
Germ-Cell Warfare in Ascidians: Sperm From One Species Can Interfere With the Fertilization of a Second Species
Daly and Minton have proposed that, to speed homologous recombination, the bacterium aligns copies of its genome so that identical DNA sequences are near each other.
Meet the Superbug
The objectives of the research described in this article were: 1) to perform evaluations of several compounds identified in either drinking water or algal samples; 2) to evaluate the application of the Weber-Fechner law in relating odor intensity to compound concentration, 3) to if odor descriptors ascribed to a homologous series changed either among the compounds or with changes in the compound concentration; and 4) calculate the OTCs of the odorous organic compounds.
Evaluating FPA for standardization
Preliminary results with these ELISAs suggest that the use of homologous antigen may moderately increase the estimates of prevalence among infected rodents; no additional cases in humans have been recognized through the use of these assays.
Progress in the development of hantavirus diagnostic assays - United States
First, on each wing surface each pattern element is serially homologous from wing cell to wing cell.
Phenotypic correlation structure among elements of the color pattern in Precis coenia (Lepidoptera: Nymphalidae)
PROfound is a prospective, multi-center, randomised, open-label, Phase 3 trial evaluating the efficacy and safety of Lynparza versus enzalutamide or abiraterone in patients with metastatic castration-resistant prostate cancer (mCRPC) who have progressed on prior treatment with a new hormonal anticancer treatment and have a qualifying tumor mutation in one of 15 genes involved in the homologous recombination repair pathway, among them BRCA 1/2, ATM and CDK12.
Lynparza Phase 3 PROfound Trial in HRR Mutation-Selected Metastatic Castration-Resistant Prostate Cancer Met Primary Endpoint
Best protection was seen with a vaccine homologous to HPAI challenge virus.
Avian Dis.: Single vaccination provides limited protection to ducks and geese against H5NI high pathogenicity avian influenza virus
They demonstrated that normal BRIT1 aids repair of double-stranded DNA breaks by allowing access to two repair pathways: homologous recombination (HR) and non-homologous end joining (NHEC).
Protein that helps summon DNA repair teams to fix cancer-causing defects identified
SHE, and its homologous equivalents in other plants such as rice, Arabidopsis, apple and potato, can be used in starch processing for generating different, e.g., larger sized, alpha-limit dextrins for industrial use, as compared to those generated by previously known alpha-amylases or other starch hydrolytic enzymes.
Iowa State University obtains United States patent

Encyclopedia browser ?
Full browser ?