Video: Nondisjunction and Aneuploidy. Learn why proper chromosome segregation is essential during meiosis. We'll see how having an extra chromosome can lead to Down Syndrome and also examine the consequences of having too few chromosomes. Disruptions to the delicate balance of cell division can have far-reaching effects. Biology 101: Intro to Biology / Science Courses.
The rights for the first four novels in the series were sold to Warner Bros. for Â£1,000,000 by J.K. Rowling. After the release of the fourth book in July 2000, the first film, Harry Potter and the Philosopher's Stone, was released on 16 November 2001.
Harry Potter and the Philosopher's Stone was released on the 16th of November 2001 in the UK & US. It was released under the title Harry Potter and the Sorcerer's Stone in the US.he first book and movie in the Harry Potter series, in  America it is known as Harry Potter and the Sorcerer's  Stone.    The story follows Harry, an eleven year old â¦ boy who discovers he is  a wizard and begins attending Hogwarts School of Witchcraft and  Wizarding.