Cows,pigs, and sheep have identical amino acid sequences for Cyt c. What does this say about their evolutionary relatedness? What other properties do these----- ------ species have in common?

Answer 1

Highly Conserved Gene: "A gene that has remained essentially unchanged throughout evolution. Conservation of a gene indicates that it is unique and essential: There is not an extra copy of that gene with which evolution can tinker, and changes in the gene are likely to be lethal." Look at other genes used in cellular respiration. Also look at proteins such as actin and myosin. It might also be fun to look at/compare hox genes.