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  • Number of hydrogen bond between A & T and G & C in a DNA double helix are Option: 1 2,2 <div class='qn

Number of hydrogen bond between A & T and G & C in a DNA double helix are 

Option: 1

2,2 


Option: 2

2,3


Option: 3

3,2


Option: 4

3,3


Answers (1)

As we have learned

DNA as a Double-Helix structure -

The two strands of polynucleotide are anti-parallel, i.e. run in the opposite direction. The backbone is formed by the sugar-phosphate-sugar chain. The nitrogen bases are projected perpendicular to this backbone but inside. A and G of one strand compulsorily base pairs with T and C respectively. There are two hydrogen bonds between A and T and three hydrogen bonds between G and C. Each strand appears like a helical structure.

- wherein

 

 

 

Posted by

Ramraj Saini

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