Which is the cell structure that is made of dna that gives the master instructions for the cell

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

Tides that occur during the new and full moons

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).