Variations in chromosome number and arrangement Flashcards
1
Q
What are the numerical aberrations?
A
- Polyploidy
- Aneuploidy
2
Q
What is numerical aberrations?
A
A change in the number of chromosomes from the wild-type number in the absence of any chromosome rearrangement.
3
Q
What are the structural aberrations?
A
- Deletions
- Duplications
- Inversions
- Translocations
4
Q
What are structural aberrations?
A
Structural aberration is a change in chromosome structure detectable by microscopic examination of the metaphase stage of cell division, observed as deletions and fragments, intrachanges or interchanges.
