When URLanelles are degraded by autophagy , typically some, but not all, of each URLanelle type are degraded. Autophagy selectivity must not only select the correct type URLanelle, but  must discriminate between URLanelles of the same kind .
<clarity> When URLanelles are degraded by autophagy , typically some, but not all, of each URLanelle type are degraded. Autophagy selectivity must not only select the correct type URLanelle, but  must discriminate between URLanelles of the same kind .
Selective autophagy must not only select the correct type URLanelle, but must discriminate between URLanelles of the same kind .