PLEASE HELP! Shelby and Michaela are learning about organisms Shelby says she is sometimes an auto trough because she makes her own food after school, a bowl of cut fruit. How can Michaela prove to Shelby that she is not an auto trough? What could she do to help Shelby investigate how an autotroph makes their own food? Please help!

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.

not sure if this is what you'r looking for prokaryotes have organelles hope this out at least.