Which of the following is a characteristic of the DNA molecule-Made up of nucleotidesNitrogenous bases are AUGCAbsent in virusesSingle stranded molecule

The correct option is A Made up of nucleotides According to the model given nbsp;by Watson and Crick in 1953, nbsp;DNA molecule consists of two parallel s ...

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Standard IX

Biology

DNA and It's Structure

Which of the ...

Question

Which of the following is a characteristic of the DNA molecule?

Made up of nucleotides

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Nitrogenous bases are AUGC

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Single stranded molecule

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Absent in viruses

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Solution

The correct option is A Made up of nucleotides

According to the model given by Watson and Crick in 1953, DNA molecule consists of two parallel strands of nucleotides which were helically twisted and are joined together by hydrogen bonds.

There are four types of nitrogeous bases adenine(A), thymine(T), cytosine (C) and guanine (G) in DNA. Uracil (U) is present in RNA in place of T.

DNA is present in all organisms ranging from viruses, bacteria to human beings. It controls all aspects of living organisms.

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