How do you tell which N on the bases bond to the deoxybrose sugar? :S

[Lols123]

As the question says..
is there a method to it or simply memorising...

[burbs]

look in the data book

edit: sorry - its the ones at the bottom of the databook.

[b^3]

Someone check me on this but I'm preety sure that the H-N at the bottom of the molecules in the data booklet are the ones that lose the H and bond to the N. Just double check

[Lols123]

yeahh but if we weren't given the data booklet, how would you find it if the teacher rotated it or something..
just wondering cause i have a DNA sac tomorrow and i dont think we're allowed the data book.

[nacho]

fairly sure b cubed is correct

[b^3]

yeahh but if we weren't given the data booklet, how would you find it if the teacher rotated it or something..
just wondering cause i have a DNA sac tomorrow and i dont think we're allowed the data book.

Thats a bit odd if you aren't allowed the data booklet cause were are for all sacs. anyway if you want the complicated way then here it is
for adenine and guanine its the N-H on the smaller ring
for cytosine and thymine its the N-H next to the C=O group but in the case of thymine NOT the N-H between the two C=O groups its the one that is NOT surrounded by them.

[scocliffe09]

yeahh but if we weren't given the data booklet, how would you find it if the teacher rotated it or something..
just wondering cause i have a DNA sac tomorrow and i dont think we're allowed the data book.

Thats a bit odd if you aren't allowed the data booklet cause were are for all sacs. anyway if you want the complicated way then here it is
for adenine and guanine its the N-H on the smaller ring
for cytosine and thymine its the N-H next to the C=O group but in the case of thymine NOT the N-H between the two C=O groups its the one that is NOT surrounded by them.

I'd be surprised if schools don't have to give you the data book for SACs...