Results 311 to 320 of about 111,170 (357)
Some of the next articles are maybe not open access.
The molecular biology of meiosis in plants.
Annual Review of Plant Biology, 2015Meiosis is the cell division that reshuffles genetic information between generations. Recently, much progress has been made in understanding this process; in particular, the identification and functional analysis of more than 80 plant genes involved in ...
R. Mercier+4 more
semanticscholar +1 more source
Experimental Cell Research, 1967
Abstract The meiotic cells in the anthers of lily and tulip contain a unique histone which is absent or nearly so, from the somatic tissues of these plants. This histone, termed the meiotic histone, is synthesized during the premeiotic histone synthesis, persists through meiosis, microsporogenesis, and pollen maturation.
W.F. Sheridan, H. Stern
openaire +3 more sources
Abstract The meiotic cells in the anthers of lily and tulip contain a unique histone which is absent or nearly so, from the somatic tissues of these plants. This histone, termed the meiotic histone, is synthesized during the premeiotic histone synthesis, persists through meiosis, microsporogenesis, and pollen maturation.
W.F. Sheridan, H. Stern
openaire +3 more sources
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
The process of meiosis in Lilium falls into four physiological stages - prezygotene, zygotene, pachytene, and post-pachytene. Each of these stages has distinctive metabolic characteristics. Commitment to meiosis occurs during the prezygotene interval at about the time when S-phase replication is completed.
Yasuo Hotta, Herbert Stern
openaire +3 more sources
The process of meiosis in Lilium falls into four physiological stages - prezygotene, zygotene, pachytene, and post-pachytene. Each of these stages has distinctive metabolic characteristics. Commitment to meiosis occurs during the prezygotene interval at about the time when S-phase replication is completed.
Yasuo Hotta, Herbert Stern
openaire +3 more sources
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
Our understanding of meiosis springs from two suggestions made by Weismann in 1887. One was that meiosis would be found to compensate for fertilization in the life cycles of both sexes and all organisms. The other was that the development of sexual reproduction in evolution depended on the value of meiosis in exposing the results of genetic ...
openaire +3 more sources
Our understanding of meiosis springs from two suggestions made by Weismann in 1887. One was that meiosis would be found to compensate for fertilization in the life cycles of both sexes and all organisms. The other was that the development of sexual reproduction in evolution depended on the value of meiosis in exposing the results of genetic ...
openaire +3 more sources
Trends in Genetics, 1988
Abstract The study of human meiosis impinges on clinically important areas such as infertility and aneuploidy, and an understanding of the behaviour of chromosomes in the germ line is essential for those engaged in genetic counselling. Recent advances in cytological techniques are allowing detailed observation of chromosomes in the prophase stage ...
openaire +3 more sources
Abstract The study of human meiosis impinges on clinically important areas such as infertility and aneuploidy, and an understanding of the behaviour of chromosomes in the germ line is essential for those engaged in genetic counselling. Recent advances in cytological techniques are allowing detailed observation of chromosomes in the prophase stage ...
openaire +3 more sources
Conservation and Variability of Meiosis Across the Eukaryotes.
Annual Review of Genetics, 2016Comparisons among a variety of eukaryotes have revealed considerable variability in the structures and processes involved in their meiosis. Nevertheless, conventional forms of meiosis occur in all major groups of eukaryotes, including early-branching ...
J. Loidl
semanticscholar +1 more source
Journal of Theoretical Biology, 1992
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 ...
openaire +3 more sources
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 ...
openaire +3 more sources
The histone codes for meiosis.
Reproduction, 2017Meiosis is a specialized process that produces haploid gametes from diploid cells by a single round of DNA replication followed by two successive cell divisions. It contains many special events, such as programmed DNA double-strand break (DSB) formation,
Lina Wang+4 more
semanticscholar +1 more source
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
Although exchanges between sister chromatids are common in mitotic cells, those involving homologous chromosomes are rare. Since recombination between homologues is one of the functions of meiosis, it follows that one aspect of the differentiation of the meiocyte involves the synthesis of proteins or enzymes which facilitate synapsis and exchange ...
openaire +3 more sources
Although exchanges between sister chromatids are common in mitotic cells, those involving homologous chromosomes are rare. Since recombination between homologues is one of the functions of meiosis, it follows that one aspect of the differentiation of the meiocyte involves the synthesis of proteins or enzymes which facilitate synapsis and exchange ...
openaire +3 more sources