Question

The failure of chromosomes to separate properly during meiosis is known as _______ and can result in a gamete with extra or missing chromosomes. This error in meiosis is the most common cause of ________.

Answer 1

It is known as Nondisjunction and it causes problems such as trisomy 21 (Down syndrome) and monosomy X (Turner syndrome). It is also a common cause of early spontaneous abortions.