A striking increase in absorbance of DNA upon denaturation is known as the hyperchromic effect.
The two strands of DNA are bound together mainly by the stacking interactions, hydrogen bonds and hydrophobic effect between the complementary bases.

In their native state, the bases of DNA absorb light in the 260-nm wavelength region.

When the bases become unstacked, the wavelength of maximum absorbance does not change, but the amount absorbed increases by 37%.
A double stranded DNA strand dissociating to two single strands produces a sharp cooperative transition.

Egg salad sandwich
Sandwiched between two hands
Hands covered in rings
Rings covered in mayonnaise
Mayonnaise made with olive oil
Oil dripping from every pore
Pores huge on his skin
Skin once not-so grotesque
Grotesque since he was nine
Nine years ago he formed a habit
Habit of feeding instead of sleeping
Sleeping isn't quite as entertaining
Entertaining is the absorbance of flavor
Flavor replaces satisfaction
Satisfaction in life
Life not chosen by he
He the king, the insomniac
Insomniac turned glutton
Glutton turned manic-depressive man
Man turned monster

Tis beyond the depth and scope
of this electronic post,
and author, what triggers deliverance
housing bounty full memory absorbance,
yet no matter how many

heat sinks plumb cognizance,
most ordinary happenstance
often dredge up old nettlesome
rusty mettlesome names
of teachers forbearance

nearly half century ago
recalled in a flash,
and helped birth this poetic instance
break open literary
piece de resistance,

yet I will make
no subsequent reference
albeit once, about Peterson Handwriting
non cursively typed poem
filled with nonsensical abundance

dashed off viz seat
of my squarepants
typed, via strong arm lance
meant tubby considered pure entertainment,
so...,this rhyme merely hints

at cerebral imbalance
as minor rave and rants,
culled from convenient
20/20 hindsight stance,
while this quiet as bobbing sponge

minutely straddled across
space time continuum expanse,
and (analogously, invisibly,
plus quixotically perched circumstance
amidst wide webbed worldly metaphysical,

intellectual, and existential kants),
yet unable to disguise me
porous (poor ***) student advance
barely getting promoted,
cuz sigh re: Seine ed lee


imaged myself prince charming
to frolic and prance,
and dreamt about being in France,
when teacher called on me,
I immediately (whistled like

a little teapot) appearance,
whereby steam issued
out chrome dome
(scanned hull – i.e. numb
skull) affixed on

short and stout genetic grants,
which noggin always
(automatically) looked askance,
while me got alphabetically seated
from grades three to six

(mrs wells, mister stout,
missus shaner, and
miss rinderle respectively)
with absolute zero exuberance
(at Henry Kline

Boyer Elementary School,
I just recalled aforementioned
randomly accessed memory by chance
casually rifling thru
memory bank, freelance
sing, while *******

away time performing,
"I gotta urinate dance,"
thus rendering painstaking years
perfecting penmanship style
(reference poem title)
executed with Liberace flamboyance,

whereat yours truly obsessively and
compulsively excelled at
duplicating signature compliance
plus crossing T's and
dotting I's with rapacious
perfectly ruled slants.