Question

dna basics fill in the blanks... in dna, the phosphate and sugar molecules form the __________ of two strands. the strands are joined together by ________ bonds that connect nucleotides. adenine always bonds to ________ and cytosine always bonds to ________. the whole molecule is coiled like a twisted ________, or double __________.

Explanation:

• In DNA, phosphate and sugar form the backbones.
• Strands are joined by hydrogen bonds.
• Adenine pairs with thymine (A - T), cytosine with guanine (C - G).
• DNA is coiled like a twisted ladder (double helix).

Answer:

backbones, hydrogen, thymine, guanine, ladder, helix