Risperidone is also approved to treat children and adolescents (ages 5-16 years) who have irritability associated with autistic disorder. Risperidone can improve symptoms of autistic disorder such as: aggression toward others, self-injurious behaviors, temper tantrums, and rapidly changing moods.
It is most widely used by cells to accurately repair harmful breaks that occur on both strands of DNA, known as double-strand breaks. Homologous recombination also produces new combinations of DNA sequences during meiosis, the process by which eukaryotes make gamete cells, like sperm and egg cells in animals.
Homologous chromosomes are chromosomes that contain the same genes but each originate from a different parent. There are two instances in meosis where this occurs, Prophase I: Synapsis of homologous chromosomes allows of cross-over of genes between mother and father chromosomes. This mixing gives rise to genetic variation. Metaphase I-Anaphase I: Disproportiante division of parental chromosomes (aka disjunction) allows for further genetic variation. The separation of the homologous chromosomes is random. That is, a daugther cell can have most of its DNA comprised by mother chromosomes, or mosty by father chromosomes, or somewhere between these two extremes (The other cell will of course have the complemetary set).