Answer:
Aneuploidy
Explanation:
Aneuploidy is the presence of abnormal normal of chromosomes in a cell. Example: The chromosomes number 45 or 47 chromosomes which is not common in case of human beings.
The normal number of chromosomes in human beings is 46. This results in different syndromes which can cause deformities in the body of the individual.
It leads to miscarriage in most of the cases the survival is very less.
In the given question, the term that describes the chromosomal abnormality is aneuploidy.
The change in the structure of the chromosome is termed as chromosomal abnormality.
The abnormality can be numerical or structural. In case of numerical abnormality, an individual is either has more than two chromosomes in place of a pair or is missing one of the chromosomes from a pair.
In structural abnormality, the structure of the chromosome gets altered in one of the many ways.
The chromosomal abnormality in which an individual is having either an extra chromosome or is missing one chromosome is termed aneuploidy.
One of the common example of aneuploidy is trisomy. In trisomy, there is an additional chromosome present.
Thus, the condition described in the given question is aneuploidy.
Find out more information about chromosomal abnormality here:
https://brainly.com/question/815305
