Answer:
The correct answer would be- The principle of independent assortment.
Explanation:
Mendelian law of independent assortment describes that the alleles of two different genes get arranged into gametes independently without influenced or affected by one another.
Independent assortment of genes is very important to generate new combinations that increase genetic variations in a population. So, the combinations of the characters in the offspring did not match up with parents could be explained by the law of independent assortment.
Thus, the correct answer is the independent assortment.