The flret fesfure of our atruoture whioh in of
biologioel intenast ie thet it aonsiste not of one ohein,
but of two. Theee two ohsine 8re both ooiIed eroundhydrogen bonds to one of the ba8es on the cldn
&eady formed. We now poetul&e thet the polyruerh&
ion of these monomers to form 8 new ahail ia
only possible if the resulting chain oen form t ho
proposed atrnature. Thie is pknwible, beoeueo ~twic
reasona would not dlow nualeotidea ‘arystallizec~’ on
to the that ahain to epproaah one another in su4 8
way thst they could be joined together into a IIOW
ah&n, unless they wem thoee nuoleotidoe which
wem neae8e8ry to form our etrnatum. Whethc
8
qx&I enzyme is required to a8rry out the polynterh&
ion, or whether the eingle helid ahain aln-:rly
formed 8ata effectively 8a en enzyme, mm8ina to he
seen.