1
THOÂNG TIN DI
TRUYEÀN THÖÏC VAÄT
CAÁU TRUÙC
VAØ MOÄT SOÁ ÑAËC TÍNH CUÛA DNA
Söï saép xeáp caùc thaønh phaàn trong DNA
Caáu truùc taùc ñoäng tôùi chöùc naêng
2
Thaønh phaàn DNA:
Nucleotide:
N: nhoùm bazô (base) N : lieân keát boå sung
vôùi maïch ñoái dieän
P: nhoùm Phosphate hình thaønh ñieän tích aâm
C: ñöôøng deoxyribose
Deoxy
OH
O
CH2
Ñöôøng Ribose
H
H
H
Nucleotide
Nucleotide
Adenosine Mono Phosphate (AMP)
Adenosine Mono Phosphate (AMP)
OH
NH2
N
NN
N
Base
P
O
OH
HO O
Phosphate
2’3’
4’
5’
1’
Nucleotide
Nucleoside
H+
-
3
4
DNA vs. Coca-Cola
Ra
Raáát tha
t thaááp
p
Bases
Bases
(A,T,C,G)
(A,T,C,G)
N (caffeine)
N (caffeine)
Trung b
Trung bì
ình
nh
Phosphate
Phosphate
Phosphate
Phosphate
(PO
(PO4
4-
-acid)
acid)
Cao
Cao
Ñö
Ñöô
ôøøng
ng
(Dexoyribose
(Dexoyribose)
)
Ñö
Ñöô
ôøøng
ng
(Sucrose
(Sucrose)
)
Ñ
Ño
oääho
hoøøa tan
a tan
DNA
DNA
CocaCola
CocaCola
5
Pyrimidines
NH2
O
N
NNH
N
Guanine
N
N
Adenine
N
N
NH2
NO
NH2
NO
NH2
N
Cytosine
Purines
Uracil
(RNA)
CH3
NO
N
O
NH
NO
N
O
NH
Thymine
(DNA)