What's the difference between disjoin and disjunct?

Disjoin


Definition:

  • (v. t.) To part; to disunite; to separate; to sunder.
  • (v. i.) To become separated; to part.

Example Sentences:

  • (1) Recombination between the two normal chromosomes or between the deletion chromosome and a normal chromosome increased the probability that these chromosomes would disjoin, although cosegregation of recombinants was observed.
  • (2) The correction and disjoining of chains may not be effective in all cells.
  • (3) The results are described within the framework of Derjaguin-Landau-Verwey-Overbeek (DLVO) theory with reference to electrostatic, van der Waals, and hydration components of disjoining pressure.
  • (4) Here we show that nonhomologous plasmids, having no detectable DNA sequence cross-hybridization, also tend to disjoin from each other at the first meiotic division.
  • (5) In many cases, nondisjunction arises from a reduction or elimination of crossing over, leading to the production of homologous univalents which fail to co-orient on the metaphase plate and to disjoin properly.
  • (6) The female meiotic mutant no distributive disjunction (symbol: nod) reduces the probability that a nonexchange chromosome will disjoin from either a nonexchange homolog or a nonhomolog; the mutant does not affect exchange or the disjunction of bivalents that have undergone exchange.
  • (7) In the great majority of patients resulting from an error of maternal meiosis there was clear evidence of recombination involving the non-disjoined chromosomes, suggesting that absence of recombination is not an important aetiological factor in non-disjunction of the X chromosome in female meiosis.
  • (8) The diplotene cells were defined on day 22 by the loss of a complete synaptonemal complex set and by the appearance of disjoined lateral elements and persistent segments of synaptonemal complexes.
  • (9) Primarily (on day 13 of gestation) the nucleolar components become rather disjoined.
  • (10) The recombination frequencies on chromosomes 21 that had undergone nondisjunction were then compared to those on chromosomes 21 that had disjoined normally.
  • (11) In seven of the simple trisomies, information was obtained from both the cytogenetic and molecular markers, making it possible to study recombination between the two non-disjoined chromosomes.
  • (12) In Drosophila males and females mutant for the ord gene, sister chromatids prematurely disjoin in meiosis.
  • (13) In strains containing one normal and any one deletion chromosome, the two chromosomes disjoined in most meioses.
  • (14) In strains containing one deletion chromosome and two normal chromosomes, the two normal chromosomes preferentially disjoined, but in 4-7% of the tetrads the normal chromosomes cosegregated, disjoining from the deletion chromosome.
  • (15) Homology on one arm was sufficient to direct chromosome disjunction, and two chromosomes could be directed to disjoin from a third.
  • (16) Recombination between the two normal chromosomes or between one normal chromosome and the deletion chromosome increased the probability that they would disjoin, although cosegregation of recombinants was observed.
  • (17) The genetic analysis of the exceptions reveals whether nondisjunction has occurred due to failure of the spindle fibres to disjoin chromosomes or attachment of the chromosomes.
  • (18) The pairs disjoin at anaphase and translocate to opposite poles and the interpolar distance increases.
  • (19) Recombination events were found in two families with regular trisomy, one occurring between chromosomes 21 that failed to disjoin at maternal meiosis I, the other prior to a paternal meiosis II nondisjunction.
  • (20) Using the thumb, forefinger and middle finger of the left hand, the skin flap containing the funiculus spermaticus is grasped and dectus deferens is palpated and disjoined.

Disjunct


Definition:

  • (a.) Disjoined; separated.
  • (a.) Having the head, thorax, and abdomen separated by a deep constriction.

Example Sentences:

  • (1) However, no mutagenic effects of amitrole were observed either in the sex chromosome non-disjunction test (females reared on medium containing amitrole at 10 ppm) or in the sex-linked recessive lethal test (males reared on medium containing amitrole at 10 ppm).
  • (2) Meiosis is too complex to have arisen at once full blown and a stepwise scheme is proposed for its evolution, where each step is believed to have provided an immediate selective advantage: (1) The first step in this tentative sequence is the development of a haploidization process by means of a rapid series of mitotic non-disjunctions, turned on under conditions where haploidy is favored.
  • (3) This synchronization of dissimilar perceptions brings together disjunctive and conjunctive categories dominated by such coordinate conjunctions as "and... and", in the living diachronic discordance.
  • (4) Both sets of conditions lead to the induction of mutation to antibiotic resistance, mitotic gene conversion, crossing-over and mitotic chromosomal non-disjunction.
  • (5) Such presynaptic activity was still evident on nerve terminals disjuncted from the synapse by enzymatic treatment prior to incubation in the conjugate.
  • (6) In studies on non-disjunction, detailed genetic analysis of the induced changes is possible, and these may shed light on the mechanisms involved.
  • (7) It is concluded that further studies in twins are necessary to prove the not yet solved problems of non-disjunction and double ovulation.
  • (8) By the same test technique, primary non-disjunction and chromosome loss, the M-type was studied in the eight sub-lines.
  • (9) The possible assoication between altered sequence of centromere disision and non-disjunction needs further confirmation.
  • (10) Analysis of the segregation of a marker chromosome indicated that sister chromatid loss (1:0 segregation) and sister chromatid non-disjunction (2:0 segregation) contributed equally to chromosome missegregation.
  • (11) BIK1 function is required for nuclear fusion, chromosome disjunction, and nuclear segregation during mitosis.
  • (12) Two mutants due to gene conversion but no mutants due to non-disjunction were detected.
  • (13) The present study confirms the increase in meiotic errors with age of mother; moreover, increasing age of the father seems to enhance non-disjunction in spermatogenesis.
  • (14) Such regions, termed "Disjunction Regulator Regions" (DRR), have been implicated in the regulation of X-chromosome segregation (Goldstein, P., The synaptonemal complexes of Caenorhabditis elegans: Pachytene karyotype analysis of the Dp 1 mutant and disjunction regulator regions.
  • (15) As genetic endpoints dominant lethality, chromosome aberrations (detachments) and non-disjunction were studied.
  • (16) This suggested that the white, cycloheximide resistant, leucine requiring colonies arose by mitotic non-disjunction and not only by two coincident mitotic crossing over events.
  • (17) Since in the trisomic cell line of the father and the son the extra chromosome 21 seems to be the same, a predisposition toward mitotic errors (non-disjunction or anaphase lagging) may be postulated, leading to the recurrent gain or loss of a specific chromosome 21.
  • (18) A review of the reproductive histories of five cases with trisomy 9pter yields 9q21 or 22 indicate that the balanced translocation mothers of these infants may have as high as a 23% chance of producing a chromosomally unbalanced offspring due to 3:1 disjunction.
  • (19) The frequency of satellite association of two different acrocentric variants in two trisomic mongols was studied taking in consideration the possible relationship of these chromosomes in the etiology of non-disjunction events.
  • (20) These observations indicate a high degree of mitotic instability and thus raise the question of the effect of premature centromeric disjunction on mitotic instability of dicentric chromosomes.

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