How Does Tetraploidy Work?

Tetraploidy occurs when cells undergoing meiosis, or the making of haploid gametes, repeat a phase one or more times, resulting in diploid gametes instead (2n) and thus tetraploid adults (4n).

Is Tetraploidy fatal?

Tetraploidy is an extremely rare, usually lethal form of chromosomal aberration. The clinical picture is dominated by intrauterine hypotrophy, profound delay in psychomotor development, microcephaly, and craniofacial defects.

How does Tetraploidy happen?

Tetraploidy is an extremely rare chromosomal anomaly, polyploidy, when an affected individual has four copies of each chromosome , instead of two, resulting in total of 92 chromosomes in each cell .