If two guinie pigs that are heterozygous for both traits are mated, what is the expected phenotypic ratio from the cross

i don't know. if i were you, i would search it up online : d

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.