11 p.-6 fig.1. The prophases of meioses in a particular pollen-sac of the monocotyledons Scilla non-scripta and Allium cepa run a synchronized course and their protoplasts are joined together by connexions. 2. The connexions are of different dimensions and they may be of either cytoplasmic or nuclear character, or they may arise from bridges set up by cell organules. 3. The connexions have been observed throughout the prophase of meiosis only. Their possible origin and the consequences are discussed. © 1969, Japan Mendel Society, International Society of Cytology. All rights reserved
The chromosomes of the two closely related diploid species, Gibasis consobrina and G. karwinskyana (...
<p>Kinetochores attach homologous chromosomes to opposite halves of the spindle. Homologs are held t...
Crossing over, in addition to its strictly genetic role, also performs a critical mechanical functio...
Complete reconstructions of all the bivalents were made from electron micrographs of serial sections...
Vacuoles formed by the invagination of the inner membrane of the nuclear envelope have been observed...
During the first meiotic division, the segregation of homologous chromosomes depends on the physical...
Reduction in chromosome number and genetic recombination during meiosis require the prior associatio...
International audienceMeiosis is the specialized eukaryotic cell division that permits the halving o...
1.Association of chromosomes at pachytene in Zea mays is 2-by-2 whether or not the parts associated ...
Avena maroccana (2n = 4x = 28) and A. sativa (2n = 6x = 42) are allopolyploids. Reconstructions from...
The paper describes the details of meiosis in a tetraploid clone (collection number 260) from Dichan...
During early prophase I in microsporocytes and sporocytes of various plants all mitochondria and pla...
<p>(i) Diploid cell with a single pair of homologous chromosomes (purple and green lines). Stages ii...
An interaction involving the nuclear envelope and spherical double-membrane bound inclusions takes p...
Comparisons were made between two kinds of tetraploids derived from the hybrid Lolium temulentum x L...
The chromosomes of the two closely related diploid species, Gibasis consobrina and G. karwinskyana (...
<p>Kinetochores attach homologous chromosomes to opposite halves of the spindle. Homologs are held t...
Crossing over, in addition to its strictly genetic role, also performs a critical mechanical functio...
Complete reconstructions of all the bivalents were made from electron micrographs of serial sections...
Vacuoles formed by the invagination of the inner membrane of the nuclear envelope have been observed...
During the first meiotic division, the segregation of homologous chromosomes depends on the physical...
Reduction in chromosome number and genetic recombination during meiosis require the prior associatio...
International audienceMeiosis is the specialized eukaryotic cell division that permits the halving o...
1.Association of chromosomes at pachytene in Zea mays is 2-by-2 whether or not the parts associated ...
Avena maroccana (2n = 4x = 28) and A. sativa (2n = 6x = 42) are allopolyploids. Reconstructions from...
The paper describes the details of meiosis in a tetraploid clone (collection number 260) from Dichan...
During early prophase I in microsporocytes and sporocytes of various plants all mitochondria and pla...
<p>(i) Diploid cell with a single pair of homologous chromosomes (purple and green lines). Stages ii...
An interaction involving the nuclear envelope and spherical double-membrane bound inclusions takes p...
Comparisons were made between two kinds of tetraploids derived from the hybrid Lolium temulentum x L...
The chromosomes of the two closely related diploid species, Gibasis consobrina and G. karwinskyana (...
<p>Kinetochores attach homologous chromosomes to opposite halves of the spindle. Homologs are held t...
Crossing over, in addition to its strictly genetic role, also performs a critical mechanical functio...