Анейплойд ба хоромосомын гаж хуваарилалт
Aneuploidy: Extra or missing chromosomes
- Monosomy is when an organism has only one copy of a chromosome that should be present in two copies .
- Trisomy is when an organism has a third copy of a chromosome that should be present in two copies .
Nondisjunction of chromosomes
Genetic disorders caused by aneuploidy
- A duplication, where part of a chromosome is copied.
- A deletion, where part of a chromosome is removed.
- An inversion, where chromosomal region is flipped around so that it points in the opposite direction.
- A translocation, where a piece of one chromosome gets attached to another chromosome. A reciprocal translocation involves two chromosomes swapping segments; a non-reciprocal translocation means that a chunk of one chromosome moves to another.