Question

An organism that has three sets of chromosomes is called a(n) ______, while one with four sets is called a(n) ______?

1) Triploid, Tetraploid
2) Haploid, Diploid
3) Monoploid, Polyploid
4) Aneuploid, Euploid

Answer 1

An organism with three sets of chromosomes is known as a triploid, and one with four sets is known as a tetraploid. These are forms of polyploidy, which is frequent in plants but rare and often results in sterility in animals.

Step-by-step explanation:

An organism that has three sets of chromosomes is called a triploid, while one with four sets is called a tetraploid. These conditions are examples of polyploidy, which refers to having more than two sets of chromosomes, a common occurrence in plants where it can lead to larger and more robust individuals. However, in animals, polyploidy is rare, and triploid animals are often sterile because meiosis cannot normally proceed with an odd number of chromosome sets.