Answer:
Chromosomes in the same pair are very similar in shape, size and genetic material they contain.
Step-by-step explanation:
Chromosomes of the same pair are called homologous chromosomes, composed of the genetic information provided by each parent for a specific characteristic.
Each homologous chromosome possesses the same genetic information that determines a characteristic or function, however, the only difference is that the alleles can be different, such as one dominant and one recessive. The size and shape of the chromosomes of a pair are similar, allowing them to be grouped in pairs.