AP BIOLOGY

Detailed explanation-1: -Cells with two additional sets of chromosomes, for a total of 92 chromosomes, are called tetraploid. A condition in which every cell in the body has an extra set of chromosomes is not compatible with life. In some cases, a change in the number of chromosomes occurs only in certain cells.

Detailed explanation-2: -For a tetraploid 2n=4x and a gamete has n=2x chromosomes. For a hexaploid 2n=6x and a gamete has n=3x chromosomes.

Detailed explanation-3: -Tetraploidy is a condition in which there are four complete sets of chromosomes in a single cell. In humans, this would be 92 pairs of chromosomes per cell. A great majority of pregnancies with a tetraploid fetus end in miscarriage, or if the pregnancy goes to full term, the infant dies shortly after birth.

Detailed explanation-4: -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.

Detailed explanation-5: -tetraploid. / (ˈtɛtrəˌplɔɪd) genetics / adjective. having four times the haploid number of chromosomes in the nucleus.