BIO120H1 Lecture Notes - Lecture 3: Deoxyribonucleoside, Ribonucleoside, Base Pair
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BIO120H1 Full Course Notes
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Individually, very weak forces but can sum to generate strong binding between molecules. Rna is the orange one. as dntps (s = a,c,t,g: dna is synthesized from deoxyribonucleoside triphosphate, otherwise known, rna is synthesised from ribonucleoside triphosphates or ntps. 5" end = top, 3" end = bottom. The purple one on the fight side (very small circle), they are phosphate bonds. They are polar (the backbone), and are hydrophilic. The bases on the other hand, (the ring structure), are hydrophobic. The bases are forced into the middle o the structure, and the sugar phosphate backbone is closer to the outside where the water is. We can see the hydrogen bonding between g-c and a-t pairs. We can see the 5" end on the top, and the 3" end on the bottom. The only way the second strand (on the right) can base pair properly, is if the second strand (complimentary) is antiparallel.
