Answer:
Homologous chromosome and ploidy number.
Step-by-step explanation:
Chromosomes reders to the DNA and the different proteins associated with it. Humans have 23 pairs of chromosomes, out of which 22 pairs are autosomes and one pair belong to the sex chromosomes.
The homologous chromosome refer to the one pairs of chromosomes that have same physical composition and looks exactly like each other. The pair includes the chromosome from the paternal and maternal origin. The ploidy level refers to the set of chromosome of an individual. The individual can be monoploid, diplod, triploid refers to the one set, two set and three set of chromosomes.
Thus, the answer is homologous chromosome and ploidy number.