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5.Molecular Basis of Inheritance
medium
Which of the following is correct for Watson and Crick's model of $DNA$. It is duplex with
A
$10$ base pairs and $34\;\mathring A$ A distance for every turn.
B
$10$ base pairs and $3.4 \;\mathring A$ distance for each turn of spiral.
C
$20$ base pairs and $34 \;\mathring A$ for each turn.
D
None of the above
Solution

According to Watson and Crick model of $DNA$, it is a double helical molecule with $10$ base pairs and $3.4 \mathrm{~nm} 34 \;\mathring A$ distance for every turn.
Standard 12
Biology