If you breed two snakes and only one has a co dominant trait, will all the young have that co dominant trait?

Example 1 I ask of:
Any snake without spider vs spider: will all the young turn out spider?

Example 2 I ask of:
Any snake without pastel vs pastel: will all the young turn out pastel?

I apologize if my question is ate up!
Thank you for any and all help!
~Brian :-)