THE MOLECULAR BASIS OF INHERITANCE
DNA REPLICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Adenine
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Thymine
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Uracil
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Guanine
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Detailed explanation-1: -Nitrogen base not found in DNA is uracil. It is found only in RNA.
Detailed explanation-2: -Uracil is not found in DNA as it uracil has more base pair affinity to adenine, guanine and cytosine. Instead thymine is present in DNA.
Detailed explanation-3: -Abstract. Uracil is one of four nitrogen bases, most frequently found in normal RNA. Uracyl can be found also in DNA as a result of enzymatic or non-enzymatic deamination of cytosine as well as misincorporation of dUMP instead of dTMP during DNA replication.
Detailed explanation-4: -Explanation: Uracil is a nitrogenous base that is only found in single-stranded RNA-it is not found in DNA.
Detailed explanation-5: -One of the four nucleobases in DNA’s nucleic acid, represented by the letters G-C-A-T, is thymine. This is so that the DNA repair enzymes may recognize thymine rather than uracil. Because thymine has a higher resistance to photochemical mutation and makes the genetic code more durable, DNA uses it instead of uracil.