Bucklover is correct.
The operative word is "accompany". I had a moose and antelope tag in WY last year and was told the same thing by the game warden. He said the law was changed a few years ago so that the evidence of sex no longer has to be naturally attached, thus the word "accompany".
If you have an "any ram" tag, the WY Game and Fish defines a ram as:
(cc) ?Ram? means a male bighorn sheep that is one (1) year or older.
Further, from the info Topgun posted:
Any person who takes any big game animal in a hunt area where the taking of either sex, species, or antler or horn development is controlled or prohibited by regulation shall comply with this section while said animal is in transportation from the site of the kill to the residence of the person taking the animal, or delivered to a processor for processing.
(a) In hunt areas where the taking of any big game animal is restricted to antler point or horn size by regulation, the antlers or horns shall accompany the animal as a whole, or edible portion thereof.
(b) In hunt areas where the taking of any big game animal is restricted to a specific sex of animal by regulation, either the visible external sex organs, head or antlers shall accompany the animal as a whole, or edible portion thereof.
(c) In hunt areas where the taking of a species of deer is controlled or prohibited by regulation, either the head or the tail of the deer shall accompany the animal, or edible portion thereof as evidence of the species taken.
Based on the regulations, and since by regulation you have to check your horns in to have them plugged, which puts you in compliance with (a) for horn size (proof of the ram being one year old), and (b) specific sex of animal (male ram), it would appear based on the regulations that you don't even need to bring out the sex organs to be in full compliance with the law.
The only problem you could potentially have (as explained to me by the warden) is that if you only had the horns accompany the meat and dropped your horns off to your taxidermist PRIOR to taking your meat to a processor, you would no longer have your proof of sex with you. However, you could also take the sex organs with you in a baggie as Bucklover does and have the regulation covered twice.
I would call the game warden in your area to clarify the requirements with him just to satisfy yourself that you are meeting his or her interpretation of the law...
Good luck on your hunt!
Horniac