Question

An organism that has three sets of chromosomes is called a(n) ________, while one with four sets is called a(n) __________.

a) Triploid; Tetraploid.

b) Diploid; Triploid.

c) Tetraploid; Hexaploid.

d) Aneuploid; Polyploid.

Answer 1

A triploid organism has three sets of chromosomes, while a tetraploid organism has four sets of chromosomes. Triploid animals are rare and sterile, while polyploidy is common in plants.

Step-by-step explanation:

An organism with three sets of chromosomes is called a triploid, while one with four sets is called a tetraploid. Triploid animals are rare and sterile because meiosis cannot proceed normally with an odd number of chromosome sets. On the other hand, polyploidy resulting in even chromosome numbers is common in the plant kingdom and polyploid plants tend to be larger and more robust than individuals with the normal number of chromosomes.