The Hellenic calendars, the Hebrew Lunisolar calendar and the Islamic Lunar calendar started the month with the first appearance of the thin crescent of the new moon. However, the motion of the Moon in its orbit is very complicated and its period is not constant.
Each daughter cell will also have 18 chromosomes. This is because daughter cells are identical to the original cell. Although during the process of mitosis the number of chromosomes changes, the final number of chromosomes in each daughter cell is always the same number as were in the original cell. This question is archived.
What is the chromosome number in daughter cells formed by mitosis from diploid parent cells? What is the chromosome number in daughter cells formed by meiosis from diploid parent cells?