Changes in hemoglobins's oxygen affinity are primarily the result of changes in the structure of the protein. a. primary b. secondary c. tertiary d. quaternary e. all of the above

answer; the correct answer is (beta)

the supermassive black hole is in the middle of the galaxy.

b.have there own function.

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.