## Problem 038 — rank:124

**Title:** Transposable-element control and function

**Added binding assumptions (LaTeX):**

```latex
Fix the within-generation order of selection, transposition, deletion and reproduction; this determines the exact transition kernel. The mean approximation drops products of weak transmission and selection changes and must have a stated error regime. A positive phenotypic effect of an insertion establishes neither a fitness benefit nor historical adaptive origin without an additional fitness and evolutionary model.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.