Results 21 to 30 of about 300,493 (300)

A Correlation of Cytological and Genetical Crossing-Over in Zea Mays [PDF]

Proceedings of the National Academy of Sciences, 1931
In this paper, McClintock and Creighton conclusively demonstrated the occurrence of genetic and cytological crossingover, a process assumed but not proven since 1910. In it they took two genetic markers and two cytological markers and demonstrated that when crossing-over occurred, they traveled together.
H B, Creighton, B, McClintock
openaire   +2 more sources

DNA double-strand break repair: genetic determinants of flanking crossing-over. [PDF]

Proceedings of the National Academy of Sciences, 1994
Whether or not homologous interaction of two DNA molecules results in crossing-over of the flanking sequences is an important decision in view of genome organization. Several homologous recombination models, including the double-strand break repair models, explain this decision as choice between two alternative modes of resolution of Holliday-type ...
K, Kusano, Y, Sunohara, N, Takahashi, H, Yoshikura, I, Kobayashi   +4 more
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Errors in chromosome segregation during oogenesis and early embryogenesis [PDF]

, 2010
Errors in chromosome segregation occurring during human oogenesis and early embryogenesis are very common. Meiotic chromosome development during oogenesis is subdivided into three distinct phases.
A Dyban, A Kuliev, A Kuliev, A Mantzouratou, A Pujol, AL Barlow, C Gutierrez-Mateo, C Gutierrez-Mateo, C Staessen, C Tease, C Tease, C Tease, C Yuncken, CM Conn, CM Conn, D Wells, D Wells, E Bendsen, E Fragouli, E Fragouli, E Fragouli, E Fragouli, E Iwarsson, EY Cheng, F Pellestor, F Pellestor, G Sher, HE Hall, J Cohen, J Cozzi, JD Delhanty, JD Delhanty, JD Delhanty, JD Delhanty, KT Jones, L Gianaroli, L Gras, L Voullaire, L Voullaire, L Wilton, M Hultén, M Sandalinas, M Simopoulou, MA Hultén, ML Lenzi, NV Kovaleva, P Platteau, PA Almeida, PA Hunt, R Angell, R Mahmood, S Cupisti, S Evsikov, S Mastenbroek, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, T Anahory, T Hassold, TR Oliver, Y Verlinsky   +65 more
core   +1 more source

Effect of Cross Over Operator in Genetic Algorithms on Anticipatory Scheduling [PDF]

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC), 2007
Disk schedulers in current operating systems schedule a request as soon as the previous request has been completed. In many common applications disk read requests are issued synchronously with short period between them In this case, the scheduler switches to a request from another process with the assumption that the last process has no more requests ...
R. Muthu Selvi, R. Rajaram
openaire   +1 more source

Control of meiotic crossing over in plant breeding

Вавиловский журнал генетики и селекции, 2023
Meiotic crossing over is the main mechanism for constructing a new allelic composition of individual chromosomes and is necessary for the proper distribution of homologous chromosomes between gametes.
S. R. Strelnikova, R. A. Komakhin
doaj   +1 more source

Interactive Effects of Physical Activity and APOE-ε4 On White Matter Tract Diffusivity in Healthy Elders [PDF]

, 2016
Older adult apolipoprotein-E epsilon 4 (APOE-ε4) allele carriers vary considerably in the expression of clinical symptoms of Alzheimer\u27s disease (AD), suggesting that lifestyle or other factors may offer protection from AD-related neurodegeneration ...
Durgerian, Sally, Lancaster, Melissa A., Nielson, Kristy A., Rao, Stephen M., Sakaie, Ken, Seidenberg, Michael, Smith, J. Carson, Woodard, John L.   +7 more
core   +2 more sources

Mendelian Inheritance Pattern and High Mutation Rates of Microsatellite Alleles in the Diatom Pseudo-nitzchia multistriata [PDF]

, 2012
The diatom Pseudo-nitzschia multistriata exhibits a diplontic life cycle composed of an extensive phase of vegetative cell division and a brief phase of sexual reproduction.
Amos, Bengtsson, Brinkmann, Callen, Casteleyn, Chepurnov, Chepurnov, Christophe Legrand, Cloutier, Cock van Oosterhout, De Meester, Dobrowolski, Douhovnikoff, Duret, D’Alelio, D’Alelio, D’Alelio, Ellegren, Ellegren, Ellegren, Evans, Gabriele Procaccini, Guillard, Halkett, Hohoff, Härnström, Kruglyak, Lakeman, Li, Marina Montresor, Ouborg, O’Connell, Reece, Reusch, Round, Rynearson, Rynearson, Rynearson, Schurko, Selkoe, Seyfert, Spurgin, Sylvie V.M. Tesson, Tesson, Valière, van Oosterhout, van Oosterhout, Vanoverbeke, White, Wiebe H.C.F. Kooistra, Zar   +50 more
core   +1 more source

Genetic Mapping in Escherichia coli K-12 by Radiation-Induced Crossing-Over [PDF]

Journal of Bacteriology, 1970
Conventional methods for chromosomal mapping in Escherichia coli are (i) interruption of matings to obtain minimum marker entry times, (ii) linkage analysis of recombinants, and (iii) cotransduction. Method (i) has a resolution of about 0.5 min (5 × 10 4 nucleotides) and is not useful for ...
M, Wann, S K, Mahajan, T H, Wood
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Culex pipiens crossing type diversity is governed by an amplified and polymorphic operon of Wolbachia

Nature Communications, 2018
Wolbachia causes cytoplasmic incompatibility (CI) between mosquitoes infected with different strains, but the genetic basis of observed CI diversity is unknown. Here, Bonneau et al.
Manon Bonneau, Celestine Atyame, Marwa Beji, Fabienne Justy, Martin Cohen-Gonsaud, Mathieu Sicard, Mylène Weill   +6 more
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The unsung hero of science: Barbara McClintock, who won the Nobel Prize in Physiology or Medicine in 1983 for her discovery of mobile genetic elements [PDF]

The Ukrainian Biochemical Journal
In 1983, American plant biologist and cytogeneticist McClintock, one of the great loners of modern­ scien­ce, received the first woman scientist’s unshared Nobel Prize in Physiology or Medicine. Barbara McClintock’s research, conducted in the 1930s, long
O. P. Matyshevska, M. V. Grigorieva, S. V. Komisarenko   +2 more
doaj   +1 more source