Gizmos ( Building DNA ) Activity A :
Question : What is the structure of DNA
Build : follow the steps given in the gizmo to construct a molecule of dna

Double Helical Spiral structure

Explanation:

DNA is a helical spiral structure in which two long strands of nucleotide form a double helix structure.

It looks like a structure of ladder in which the phosphate and sugar molecules from the side of the ladder and the base pairs form the rungs.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.