A few years ago, scientists thought they had found this characteristic in some Argentinian rats, but most now believe that it does not exist in healthy mammals except in a few specialized cells. It does exist in a small number of fish and other animals, but it is far more common in ferns and other plants, probably existing 
A few years ago, scientists thought they had found this characteristic in some Argentinian rats, but most now believe that it does not exist in healthy mammals except in a few specialized cells. It does exist in a small number of fish and other animals, but it is far more common in ferns and other plants, probably existing in the majority of angiosperms. Though it often occurs naturally, it sometimes is induced in crops by the application of colchicine cream, which disrupts meiosis. Give this term that refers to having more than two homologous sets of chromosomes.
A few years ago, scientists thought they had found this characteristic in some Argentinian rats, but most now believe that it does not exist in healthy mammals except in a few specialized cells.
Polyploid(y) (accept Tetraploid(y))