関連ワード:
what makes up the outside of the dna ladder what makes up the rungs of the dna ladder what makes up the rungs of the dna ladder structure what nucleotides make up the outside of the dna ladder which nucleotide parts) make up the outside of the dna ladder what component makes up the rungs of the dna ladder which molecules makes up the outside of the dna ladder what molecule makes up the rungs of the dna ladder what makes up the rungs center of the dna ladder can be 4 different types what chemicals make up the rungs of the dna ladder
