There are five species of the Texas state flower Bluebonnet flower is found in a different region of Texas and a slightly different traits what most likely accounts for this variation A. Selective pollinationB. Genetic engineering c. Selective breedingD. natural selection

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.