Question

Which term describes the chromosomal abnormality of having three copies of a single chromosome?

Answer 1

i believe its trieploidy or however you spell it. Loll

Answer 2

Your my trap queen. :3

Answer 3

its is a genetic disorder that is caused by mutation . down syndromw is a isorder for individuals who during their birth are relatively to have a third copy on chromosome 21 .. hope this helps @fettywaap

Answer 4

gene mutation ** to be specific