So how different is the genome secquence of dust?
Why don't you gather the dust under your own bed, do a genome sequence study and get back to us with your findings.
Any reasonably competent scientist should be able to recognize the study's limits and predict the outcome of such a study as well. On the other hand an evolutionist such as yourself, given your materialist's premise, will look at the data from the dust samples and assume incorrectly -- as it appears from the premise of your question you do -- that either a potential for a genome sequence never existed in what elements remain in the dust, or that mankind must have evolved from primordial digestive juices of dust mites.
Admittedly its not good scientific thought but then again neither is much materialistic thought whenever it is applied in the context of a real scientific discussion.
The bible predicts the outcome of the experiment: "...dust you are and unto dust you shall return. (Genesis 3:19)
Materialists are too often surprised by what is so obvious to those who are already sufficiently and credibly informed.