BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA
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RNA
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Both
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None of the above
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Detailed explanation-1: -DNA contains adenine, guanine, cytosine and thymine, whereas, RNA contains adenine, guanine, cytosine and uracil.
Detailed explanation-2: -Three of the four nitrogenous bases that make up RNA-adenine (A), cytosine (C), and guanine (G)-are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine (Figure 3).
Detailed explanation-3: -Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .
Detailed explanation-4: -Three of the five nitrogenous bases are common to both DNA and RNA. These are adenine (A), cytosine (C), and guanine (G).
Detailed explanation-5: -They also play roles in the metabolism, enzyme activities, and cell signalling processes. A nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The four nitrogenous bases found in DNA are adenine, thymine, guanine, and cytosine.