Final answer:
Aneuploidy refers to the presence of an abnormal number of chromosomes in a cell. Monosomy often results in non-viable embryos while some trisomies may result in live births, with trisomy 21 being the most common and viable resulting in Down Syndrome.
Step-by-step explanation:
Anueploids of which chromosomes are less likely to result in a live birth? The term aneuploidy refers to a condition where an individual has an abnormal number of chromosomes. Monosomy, the condition of having one fewer chromosome (2n-1), typically results in non-viable embryos because they lack essential genes.
On the other hand, some cases of trisomy, where an individual has one extra chromosome (2n+1), can lead to live births, although they often present significant health challenges.
The most common and viable trisomy is that of chromosome 21, leading to Down Syndrome. Individuals with trisomies of chromosomes 13, 15, 18, and 22 may also survive, but these are typically less likely to result in live births when compared to trisomy 21.