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Can imino and enol forms of nitrogenous bases pair together in organisms?


igtoideno
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I am currently studying for my high school biology exam and I’ve been given some notes from my biology teacher (the notes are from the time when she was a university student). These notes contain the following text (I'll attempt to translate it - it’s a bit unclear in my native language, so I’ll attempt to translate it in the same unclear way):

There are two tautomeric forms of nitrogenous bases (amino and imino, keto and enol). These tautomeric forms differ in the position of hydrogen. The “right” forms of these isomers are amino and keto. Imino and keto forms are capable of pairing in a different, Watson-Crick way. The occurrence is approximately 10-5 to one classical tautomeric form.

Imino and keto forms are capable of pairing in a different, Watson-Crick way.

My question is: Is this correct? Shouldn’t it be imino and enol forms are capable of pairing in a different, Watson-Crick way?

Or is there something I don’t understand? How would the pairing occur?

Thank you very much. Google has been of no help.

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On 8/19/2022 at 6:59 PM, igtoideno said:

I am currently studying for my high school biology exam and I’ve been given some notes from my biology teacher (the notes are from the time when she was a university student). These notes contain the following text (I'll attempt to translate it - it’s a bit unclear in my native language, so I’ll attempt to translate it in the same unclear way):

There are two tautomeric forms of nitrogenous bases (amino and imino, keto and enol). These tautomeric forms differ in the position of hydrogen. The “right” forms of these isomers are amino and keto. Imino and keto forms are capable of pairing in a different, Watson-Crick way. The occurrence is approximately 10-5 to one classical tautomeric form https://omegle.onl/ https://xender.vip/.

Imino and keto forms are capable of pairing in a different, Watson-Crick way.

My question is: Is this correct? Shouldn’t it be imino and enol forms are capable of pairing in a different, Watson-Crick way?

Or is there something I don’t understand? How would the pairing occur?

Thank you very much. Google has been of no help.

I got this,..

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