Aspore stalk grows from the gametophyte of a moss. what is the next step in its life cycle? a: gametophyte b: meiosis c: gametes d: mitosis i know for certain it's not a; i tried it and it was wrong.

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.