Which of the following statements is not true about $RNA$?
- AIt has always double stranded $\alpha - \text{helix}$ structure
- BIt is present in the nucleus of the cell
- CIt controls the synthesis of protein
- DIt usually does not replicate
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The $AT/GC$ ratio in human beings is (where $A = \text{adenine}$,$T = \text{thymine}$,$G = \text{guanine}$,$C = \text{cytosine}$)
Which base is present in $RNA$ but not in $DNA$?
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View SolutionThe number of hydrogen bonds between guanine and cytosine; and between adenine and thymine in $DNA$ is
Which of the following correctly represents hydrogen bonded pairs in $DNA$?
Explain the structure of nucleic acids.
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