6. Bears were once present as far south as California. Over time they have disappeared in most of the lower 48 states. How might the influx of humans have influenced bear
populations?

there’s no image attached but i can if you want: )

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.