2. What are the most important things you have learned in this unit about how the trillions of cells in the human body get what they need to function, and what they do with the things they absorb?

human-caused climate hope this

her affection for her parents makes her an especially sympathetic character.

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.