is about
record of missing knowledge
record of unknown sex
record of unknown sex
A database record indicating that the tissue sample in a microarray experiment came from an organism for which the biological sex is not known to the person who created the record.
I think the statement is still about the instance of the biological sex quality of an organism. It is also about information available to the person making the statement.
Bjoern Peters
a record indicating that the biological sex of an organism is not known.
biological sex
metadata complete