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AIEEE 2011 Solved Paper
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© examsnet.com
Question : 29
Total: 91
The presence or absence of hydroxyl group on which carbon atom of sugar differentiates RNA and DNA ?
2
n
d
3
r
d
4
t
h
1
s
t
Validate
Solution:
R
N
A
has
D
(
−
)
- Ribose and the
D
N
A
has 2 -Dexoy
D
(
−
)
-ribose as the carbohydrate unit.
From the structures it is clear that
2
nd
carbon in
D
N
A
do not have
O
H
group.
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