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Question
Which of the following nucleotide ring of DNA is methylated at the 5-carbon position?
Which of the following nucleotide ring of DNA is methylated at the 5-carbon position?
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Solution
The correct option is C Cytosine
DNA methylation is a modifcation to DNA that occurs through the addition of a methyl group to DNA strand itself, often to the 5 carbon position of a cytosine ring where thymine's methyl group is located. This type of modification can be removed or inherited without any disruption of the original DNA sequence. This type of modification is essential for normal development and also involved in the repression of transposomes and X chromosome inactivation.
Thus, the correct answer is option C.
DNA methylation is a modifcation to DNA that occurs through the addition of a methyl group to DNA strand itself, often to the 5 carbon position of a cytosine ring where thymine's methyl group is located. This type of modification can be removed or inherited without any disruption of the original DNA sequence. This type of modification is essential for normal development and also involved in the repression of transposomes and X chromosome inactivation.
Thus, the correct answer is option C.
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