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Question
Choose the correct answer from each of the four options given below:
DNA is formed of
Choose the correct answer from each of the four options given below:
DNA is formed of
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Solution
The correct option is A Nucleotides
The correct option is A.
Explanation of the correct option:
- DNA is a genetic material that is consists of two complementary and antiparallel nucleotides strands.
- DNA is made up of four nucleotides.
- Each nucleotide has a deoxyribose sugar, a phosphate radical, and a nitrogen base (adenine, guanine, cytosine, and thymine).
Explanation of the incorrect options:
Option B: Deoxyribose sugar is a part of DNA but not the sole component of DNA.
Option C: DNA contains phosphate radical which links the nitrogen bases.
Option D: DNA contains four types of nitrogen bases, but also contains other components like sugar and phosphate radical.
Hence, DNA is formed of nucleotides.
Nucleotides
The correct option is A.
Explanation of the correct option:
- DNA is a genetic material that is consists of two complementary and antiparallel nucleotides strands.
- DNA is made up of four nucleotides.
- Each nucleotide has a deoxyribose sugar, a phosphate radical, and a nitrogen base (adenine, guanine, cytosine, and thymine).
Explanation of the incorrect options:
Option B: Deoxyribose sugar is a part of DNA but not the sole component of DNA.
Option C: DNA contains phosphate radical which links the nitrogen bases.
Option D: DNA contains four types of nitrogen bases, but also contains other components like sugar and phosphate radical.
Hence, DNA is formed of nucleotides.
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