Goodbye to you my trusted friend. We've known each other since we were nine or ten. Together we've climbed hills and trees. Learned of love and ABC's. Skinned our hearts and skinned our knees. Goodbye my friend it's hard to die. When all the birds are singing in the sky. Now that spring is in the air. Pretty girls are everywhere.
Relevance. Rating Newest Oldest. Best Answer: Hydrogen bonds hold the nitrogen-containing bases of each DNA strand together. Adenine (A) and Thymine (T) are held together by two H-bonds, and Cytosine (C) and Guanine (G) are held together by three.elevance. Rating Newest Oldest. Best Answer: Hydrogen bonds hold the nitrogen-containing bases of each DNA strand together. Adenine (A) and Thymine (T) are held together by two H-bonds, and Cytosine (C) and Guanine (G) are held together by three.
The two polynucleotide chains that comprise each molecule of deoxyribonucleic acid, or DNA, are held together by two forces: hydrogen bonding and hydrostatic forces. Hydrogen bonds form between... The two polynucleotide chains that comprise each molecule of deoxyribonucleic acid, or DNA, are held together by two forces: hydrogen bonding and hydrostatic forces. Hydrogen bonds form between complementary base pairs, while hydrostatic forces determine the orientation of the hydrophilic phosphate backbone relative to the more hydrophobic base pairs. Each polynucleotide chain is comprised of a negatively charged phosphate backbone that connects a sequence of base pairs.