Chromosome characteristics determine the genetic sex of a fetus at conception. It centres on his own conception of evolution. A host of deities oversaw every aspect of intercourse, conception, and childbirth. Lailah is an angel of the night in charge of conception and pregnancy. I think the materialist conception of history is valid. Japan is a society notorious for its rigid conception of gender roles. I turn to this conception of justification below. Omnipotent God could make even our conception of mathematics false. It is somewhat arbitrary and has moved since its first conception in classical antiquity. There is difference of opinion between the academic and the popular conception of the term. It does not refer to the natural conception and delivery of identical twins. Concerning rhythm, this period had several dramatic changes in both its conception and notation. Akasha is space in the Jain conception of the cosmos. Nevertheless, a popular conception developed of Waugh as a monster. The city has the Roman Catholic Cathedral of the Immaculate Conception.