Answer:
Polyploidy is involved in such type examples like Triploid and tetraploid.
Explanation:
1. Polyploidy: the condition in which a normally diploid cell or organism gain one ( triploid) , two ( tetraploid) or more additional sets of chromosomes. Polyploidy arises as the result of total non-disjunction of chromosomes during metaphase of mitosis or meiosis, in which the chromosome are not separated during cell division
2. Examples of polyploidy are : Triploid and tetraploid chromosomes.
3. Polyploidy more commonly occurs in many angiosperm plants.