Suppose you are studying traits in mice, and you notice that two traits seem to be found together more often than you would expect under Mendel’s law of independent assortment. For example, you keep...

Suppose you are studying traits in mice, and you notice that two traits seem to be found together more often than you would expect under Mendel’s law of independent assortment. For example, you keep noticing that mice with blue eyes are often deaf too. Can you think of two possible explanations for this?