Although Eid al-Adha is always on the same day of the Islamic calendar, the date on the Gregorian calendar varies from year to year, since the Gregorian calendar is a solar calendar and the Islamic calendar is a lunar calendar.id al-Adha in 2016 is on Sunday, the 11th of September. Based on sightability in. , in 2016 Eid al-Adha will start in North America a day later-on Monday, the 12th of September.
heredity. the transmission of genetic traits from parents to offspring. The hereditary material is DNA in the ovum and sperm, so that the offspring's heredity is determined at the moment of conception.Inside the nucleus of each germ cell are structures called chromosomes.he genetic transmission of traits from parents to offspring. The hereditary material is contained in the ovum (oocyte) and sperm, so that the child's heredity is determined at the moment of conception. Chromosomes and Genes.
Genetic recombination is the production of offspring with combinations of traits that differ from those found in either parent. In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on from the parents to the offspring.Most recombination is naturally occurring.n both meiotic and mitotic cells, recombination between homologous chromosomes is a common mechanism used in DNA repair. Genetic recombination and recombinational DNA repair also occurs in bacteria and archaea, which use asexual reproduction.