Results 271 to 280 of about 42,079 (286)
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Chromosome pairing and induced exchange in Drosophila
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, 1965Abstract Fragments of Y chromosomes were induced by irradiating attached-X Drosophila melanogaster females carrying a doubly marked Y chromosome, and detected by loss of one of the Y markers. Slightly more than half of the 55 fragments recovered showed linkage of fourth chromosome markers, implying a high frequency of association of Y and fourth ...
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GENETIC CONTROL OF CHROMOSOME PAIRING IN WHEAT
Annual Review of Genetics, 1976OTHER WHEAT GENES AFFECTING PAIRING . . ....... . . . . . . . . ......... . . . . ........ ...... 37 Promoters of Pairing 37 Suppressors of Pairing 38 GENES IN OTHER SPECIES THAT AFFECT PAIRING 39 THE EFFECT OF ACCESSORY CHROMOSOMES ...
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Efficient DNA pairing in a Neurospora mutant defective in chromosome pairing
Molecular and General Genetics MGG, 1991A Neurospora crassa mutation, mei-2, affecting recombination and pairing of homologous chromosomes during meiosis, was characterized for its effect on repeat-induced point mutation (RIP). We found that RIP, which depends on recognition of DNA sequence homology, is not inhibited by mei-2, suggesting that the defect in chromosome pairing of this mutant ...
H M, Foss, E U, Selker
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THE EFFECT OF COLCHICINE ON CHROMOSOME PAIRING
Canadian Journal of Genetics and Cytology, 1977Beginning at 120 hours prior to first metaphase of meiosis (MI) a 0.03% aqueous solution of colchicine was injected into the boot of pentaploid (hexaploid triticale × tetraploid wheat) hybrids developing at 20 °C ± 1° under continuous illumination. Colchicine applied 40 h or less prior to MI had no effect on chromosome pairing, while its application 40
J. B. Thomas, P. J. Kaltsikes
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Molecular perspectives of chromosome pairing at meiosis
BioEssays, 1994AbstractIdeas about the mechanisms that regulate chromosome pairing, recombination, and segregation during meiosis have gained in molecular detail over the last few years. The purpose of this article is to survey briefly the shifts in paradigms and experiments that have generated new perspectives.
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The Analysis of Chromosome Pairing
1975In respect to chromosome pairing, two situations may be distinguished: non-competitive pairing, in which only two possible partners are available, and competitive pairing, where more than two potential partners are available, but where nevertheless only two at a time can finally pair sufficiently effectively to form a chiasma.
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Sex-chromosome pairing and male fertility
Cytogenetic and Genome Research, 1974In this paper a hypothesis is presented which relates chromosome pairing and sterility in males. This hypothesis has been formulated on the basis of data from numerous meiotic systems in the male of <i>Drosophila melanogaster, </i>where the sex chromosomes have heterochromatic pairing sites, sites which must interact in order for ...
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Chromosomal Control of Preferential Pairing in Nicotiana
Science, 1961A stock of tobacco with 23 pairs of tobacco chromosomes and one substituted pair from Nicotiana glutinosa was available. An amphiploid of this tobacco with N. tomentosiformis was synthesized in order to test whether preferential pairing is determined by the homologies of the chromosomes or ...
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