In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: Noteworthy efforts have been made in the experimental field ; a recessive autosomic form found in the mouse seems to bear the closest resemblance to the human form from the genetic point of view .
### Output Text:
Noteworthy efforts have been made in the experimental field ; a recessive autosomic form found in the mouse seems to bear the closest resemblance to the human form from the genetic point of view . 