homologous recombinationLinker of nucleoskeleton and cytoskeleton complexmeiosissynapsisMeiosis is a specialized cell division that occurs in sexually reproducing organisms, generating haploid gametes containing half the chromosome number through two rounds of cell division. Homologous chromosomes pair and prepare...
(Genetics) any of the microscopic rod-shaped structures that appear in a cell nucleus during cell division, consisting of nucleoprotein arranged into units (genes) that are responsible for the transmission of hereditary characteristics. See alsohomologous chromosomes ...
(Also known as lyonization or silencing). A process that occurs in female mammals in which gene expression from one of the pair of X chromosomes is downregulated. This ensures that the levels of X chromosome gene expression in females matches that of males. ...
The human sex chromosomes share a pair of homologous genes which independently encode a cell-surface antigen defined by the monoclonal antibody 12E7 (refs 1, 2; see refs 3, 4 for review). The X-located homologue, MIC2X , escapes X-inactivation 5 and the equivalent Y-located locus, MIC2Y...
Allele: in a pair of homologous chromosomes on the same location of different forms of genes controlling a character. 翻译结果4复制译文编辑译文朗读译文返回顶部 Allele: One of the homologous chromosomes are located in the same position on controlling a different patterns in the genes. ...
Does a homologous chromosome pair actually has four chromosomes? What is the difference between replication and duplication in chromosomes? What is the difference between autosomes and sex chromosomes? Does a 2n individual have homologous chromosomes or two copies of each chromosome?
6). Other chromosome-level assembled orchid genomes have different chromosome numbers, for example, 14 chromosomes for Vanilla planifolia26, 19 for Pha. aphrodite27 and 19 for Dendrobium chrysotoxum28. However, the differences in chromosome numbers are not due to a few chromosome fusions and ...
作者: A Falaschi 摘要: Genetic recombination in eukaryotes requires the pairing of homologous chromosomes to allow precise molecular exchanges between chromosome pairs at intertwined structures called Holliday junctions, the formation of which requires the action of the RecA protein. The mechanism behind ...
Chapter 10,Homologous Recombination at the Molecular Level,Chapter 10,DNA分子内或分子间发生遗传信息的重新组合,称为遗传重组 genetic recombination
in parrots are likely associated with parrot-specific loss of two genes,ALC1andPARP3, that have known functions in the repair of double-strand breaks and maintenance of genome stability. We further find that the fusion of the ZW sex chromosomes and chromosome 11 has created a pair of neo-...