C) heliocentric theory is what I think is the correct answer
The percentage that is homozygous recessive is .3^2=.09
DNA -- RNA -- TRNA--- amino acid--- protein
DNA (DeoxyRiboNucleicacid) creates RNA (RiboNucleicAcid) which is DNA basically cut in half vertical this then is "translated into a code of amino acids" by TransferRNA then these codons (3 bases grabbed by transferRNA) are turned to amino acids from there after the sequence is done you have a protien full of information on what to do