homologous chromosomes

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homologous chromosomes

[hə¦mäl·ə·gəs ′krō·mə‚sōmz]
(genetics)
A pair of chromosomes, one inherited from each parent, that have corresponding gene sequences and that pair during meiosis.
References in periodicals archive ?
These findings indicate that primary spermatocytes in the hinny could enter into synapsis but because of the failure of homologous chromosomes to pair (Henry et al.
Two alleles at one biallelic marker can divide the chromosomes in a population into two categories; these two alleles would result in three genotypes at the specified marker on homologous chromosomes and, thus, could be used to divide the individuals in a population into three categories.
The centromeres of each of the two homologous chromosomes paired during the first part of meiosis I are pulled apart and move toward opposite poles of the cell--this occurs in anaphase I.
Genetic linkage is symbolized with either a single straight line or a single forward slash separating the genes that reside on different members of a pair of homologous chromosomes, for example,
In this present study, we bridge across genetic interest to plant breeding interest as we probe the genetic effects of a specific 3-79 chromosome or chromosome arm and the homologous chromosome or arm in the elite cultivars.
Similar, homologous chromosomes pair whereas dissimilar, nonhomologous chromosomes do not.
The Ph1 locus is mapped to the chromosome 5B linkage group (Riley and Chapman, 1958; Sears and Okamoto, 1958), and Ph1 acts as a dominant gene suppressing the pairing of homeologous chromosomes while allowing regular pairing between homologous chromosomes.
The alfalfa karyotype consists of one set of homologous chromosomes with a satellite (chromosome 8), four sets of submetacentric chromosomes (chromosome 1-4) and three sets of metacentric chromosomes (chromosomes 5-7).
In primary trisomics, three homologous chromosomes predominately form 1 III and 1 II + 1 I configurations.
1] interchange heterozygotes in which homologous chromosome pairing must occur between segments separated by an interchange.
A disadvantage of using RAPD markers is that amplified fragments within and between progeny cannot be assumed to represent homologous chromosome loci.
This patient's disease is TCIRG1-related disease, which occurs due to the loss of function of both alleles on the homologous chromosomes.