Compare and Contrast the following. 1.Phanerozoic and Precambrian Eon

2.Era, Period and Epoch

help me.​

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.

i think the answer would be a. after sentence 14! i hope i at least a little