AP BIOLOGY

Detailed explanation-1: -Polyploidy is the heritable condition of possessing more than two complete sets of chromosomes. Polyploids are common among plants, as well as among certain groups of fish and amphibians. For instance, some salamanders, frogs, and leeches are polyploids.

Detailed explanation-2: -polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. In other words, the polyploid cell or organism has three or more times the haploid chromosome number.

Detailed explanation-3: -Polyploids are organisms with three or more complete chromosome sets. Polyploidization is widespread in plants and animals, and is an important mechanism of speciation.

Detailed explanation-4: -1. Aneuploidy refers to the presence of an abnormal amount of chromosomes in haploid cells. 1. Polyploidy refers to the presence of an extra set of chromosomes in the cells and occurs due to abnormal cell division and commonly occurs in plants.

Detailed explanation-5: -Polyploidy is a common abnormality seen in 1st-trimester pregnancy losses. Triploid cells are those with 3 haploid sets of chromosomes (3n) and are only viable in a mosaic form. Triploid infants can be liveborn but do not survive long. Triploidy is often the result of fertilization of an egg by 2 sperm (dispermy).