What is meant by 'Pair of Trait'?
Kindly refer the link below for a similar query:
https://www.meritnation.com/ask-answer/question/law-of-independent-assortment-the-law-states-that-when-two/reproduction-in-organisms/4518310
https://www.meritnation.com/ask-answer/question/law-of-independent-assortment-the-law-states-that-when-two/reproduction-in-organisms/4518310