Biology, asked by dasit4543, 6 hours ago

write two structural features of DNA

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Answered by sunitha1sunil123

Explanation:

Structure of DNA

Pentose sugar – A pentose sugar is a 5-carbon sugar. In case of DNA, this sugar is deoxyribose whereas, in RNA, it is ribose.

Phosphate group.

Nitrogenous base – These can be of two types – Purines and Pyrimidines. Purines include Adenine and Guanine whereas pyrimidines include Cytosine and Thymine.

Answered by bhavyasethi124

Answer:

DNA exists as a double helix in which the two polynucleotide chains are coiled about one another in a spiral with a diameter of about 20Å (Fig. 1). 2. Concentration of thymine was always equal to the concentration of adenine and the concentration of cytosine was always equal to the concentration of guanine.

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