2017-07-30T03:46:40+03:00[Europe/Moscow] en true Homologous chromosome, Preimplantation genetic diagnosis, Meiosis, Ploidy, Allosome, Cohesin, Chloroplast DNA, Azoospermia factor, Satellite chromosome, Neuroacanthocytosis, Chromatin bridge flashcards


  • Homologous chromosome
    A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosomes that pair up with each other inside a cell during meiosis.
  • Preimplantation genetic diagnosis
    Pre-implantation genetic diagnosis (PGD or PIGD) refers to genetic profiling of embryos prior to implantation (as a form of embryo profiling), and sometimes even of oocytes prior to fertilization.
  • Meiosis
    Meiosis /maɪˈoʊsᵻs/ is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.
  • Ploidy
    Ploidy is the number of sets of chromosomes in a cell.
  • Allosome
    An allosome (also referred to as a sex chromosome, heterotypical chromosome, heterochromosome, or idiochromosome) is a chromosome that differs from an ordinary autosome in form, size, and behavior.
  • Cohesin
    Cohesin is a protein complex that regulates the separation of sister chromatids during cell division, either mitosis or meiosis.
  • Chloroplast DNA
    Chloroplasts have their own DNA, often abbreviated as cpDNA.
  • Azoospermia factor
    Azoospermia factor (AZF) refers to one of several proteins or their genes, which are coded from the AZF region on the human male Y chromosome.
  • Satellite chromosome
    Besides the centromere, one or more secondary constrictions can also be observed in some chromosomes at metaphase.
  • Neuroacanthocytosis
    Neuroacanthocytosis is a label applied to several neurological conditions in which the blood contains misshapen, spiculated red blood cells called acanthocytes.
  • Chromatin bridge
    Chromatin bridge is a mitotic occurrence that forms when telomeres of sister chromatids fuse together and fail to completely segregate into their respective daughter cells.