Two recessive disorders in mice- droopy ears and flaky tail-are caused by genes that are located 6 mu apart on chromosome 3. A true breeding mouse with normal ears (De) and a flaky tail (ft) was crossed to a true-breeding mouse with droopy ears (de) and a normal tail (Ft). The F1 offspring were then crossed to mice with droopy ears and flaky tails. If this testcross produced 100 offspring, what is the expected outcome?