1. What are chromosomal aberrations?
Ans. Chromosomal aberrations are the genetic disorder which occurred as a response to change in the number of the structural arrangement of chromosomes.
2. What are the seven types of abnormalities of chromosomes?
Ans. The seven types of abnormalities of chromosomes include – translocations, insertions, deletions, rings, mosaicism, mixoploidy and Aneuploidy.
3. What is Down syndrome?
Ans. It is a chromosomal disorder which occurs due to an error in cell division, leading to an additional copy of chromosome 21. It tends to hamper the physical and cognitive abilities of persons and also makes them susceptible to various health disorders.