function show_recurrence_description() {
  if (is_event()) {
    ?>
        <script type="text/javascript">
          // your javscript code goes here
          jQuery( document ).ready(function() {
             jQuery('.tribe-events-event-body').clone().insertAfter('.recurringinfo')
          });
        </script>
    <?php
  }
}
add_action('wp_head', 'show_recurrence_description');