, N det
nucleic acids info thatc ontrols cellular
activity developmentofa n entire
·
store
org
-
+
↳
done
through controlling protein synthesis
proteins make up structure of body
· -
enzymes control chemical processes control structure and functioning
->
=
-
deoxyribom a c h i n
voe cial
volisa na r e
·
19505
King's Rosalind Franklin,Maurice Wilkins
College
· -
↳
Structure:looked X-ray
at
crystallography
Cavendish Institute, Cambridge Watson
·
-
Francis Crick, James
↳>
analyzed x-ray, data collectedby Franklin
↳
built model outo fbrass plate clamps
+
realised:nucleic acids
-
arranged like twisted ladder wl c runners made of
phosphates +
sugars
+
rungs
↳ made ofb ases= of
rungs pairs
organic pairs
Watson+Crick developed ideas about for
geneticreplication:when separate, each template new chain
·
I strands
thattripletcode (DNA) to (RNA)=
Crick Brenner genetic proof used transferred cytoplasm protein synthesis
-
·
+
+
↳functions
replicate
-
itself
carries
genetic sequences
-
Nobel Prize credits
Rosalind Franklin only one we chem. degree
· =
↓
worked discovered helical shape butd idn'twantto announce until she hadsufficientevidence
mostly alone +
↳
died at 37 to cancer before
-
expressing work
Wilkins= for in
Watson, Crick wor Nobel Prize
physiolog/medicine
·
+ 1962
↳
only goes to living recipients:F ranklin notcredited
↳ 8: ethical question ofw omen in STEM
being credited
toc a t i o n
nucleus:important partofchromosomes
·
↳
make up chromatin network
↳
found in
to chromation chromosomal material made of
DNA, RNA+ histone proteins as a
=
non-dividing cell
↳
coiled-so as to fit =2m ofD NA
·
extranuclear DNA - small amounts in mitochondria in plants - animals chloroplasts
+
in plants
&
mitochondria their
supports cell
theory of
being own
orgs originally
~S t r e e tr e
·
long, twisted ladder -
I strands stable,
-
3p double helir
nucleotides:1 . deoxyribose molecule (S)
long polymer made of
m onomers
sugar
= :
·
2. Phosphate molecule (P)
base adenine (A) &All Gets
3.
nitrogenous Tea Cold
thymine (T)
·
·
guanine (G)
cytosine (C)
·