Which statement about polyploids is not true Autopolyploids

Which statement about polyploids is not true? Autopolyploids have extra chromosome derived from the same organism Odd ploidy numbers cause the formation of unbalanced gametes during meiosis Autopolyploids can occur during meiosis or mitosis Alloploidy form a hybrid species because chromosomes from 2 species come together Polyploidy is the presence of one or more chromosomes Many 3N fruits are seedless

Solution

Polyploidy is the presence of one or more chromosomes.

Polyploidy specifically refers to a numerical change in a whole set of chromosomes. While the term aneuploidy is used to refer to an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46.