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12 grade biology others

The nitrogen base found only in DNA is also called

  • (a) 5-methyl uracil
  • (b) NH₄Cl
  • (c) Uracil
  • (d) Guanine

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10 Months agoGrade
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1 Answer

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ApprovedApproved Tutor Answer10 Months ago

The nitrogen base that is found exclusively in DNA is known as Guanine. This base is one of the four primary nitrogenous bases in DNA, alongside adenine, cytosine, and thymine.

Understanding DNA Bases

In DNA, the bases pair specifically: adenine pairs with thymine, and guanine pairs with cytosine. This pairing is crucial for the structure and function of DNA.

Other Options Explained

  • 5-methyl uracil: This is not a standard nitrogen base in DNA.
  • NH₄Cl: This is ammonium chloride, not a nitrogen base.
  • Uracil: This base is found in RNA, not DNA.

Thus, the correct answer is Guanine.