In the structure of DNA, one-nucleotide purine base joins with pyramid type by which bond?

Aster

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Weak hydrogen

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Glycosidic

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Peptide

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Solution

The correct option is B Weak hydrogen
Answer is option B i.e. "Weak hydrogen"
DNA is made up of nucleotide. Nucleotides join up with one another based on chemical compatibility of their nitrogen bases that are held together by weak hydrogen bond. In DNA, this hydrogen bond helps in stabilizing the nucleic acid structure.

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Similar questions

Name the following :
(a) The repeating components of each DNA strand lengthwise.
(b) The complex structure consisting of DNA strand and a core of histones.
(c) The type of bond which joins the complementary nitrogenous bases.
(d) The three components of a nucleotide.

Q. Match List I (structure) with list II (explanation/definition) and select the correct answer.

List-I	List-II
a. Nucleoside	$1$ . Deeply stained body containing rRNA
b. Nucleotide	$2$ . Portion of a DNA or RNA composed of one deoxyribose(in DNA) or ribose(in RNA) plus a purine or a pyramidine
c. Nucleolus	$3$ . Short disk-shaped cylinders composed of nucleoproteins and spaced at roughly $100$ A intervals on chromosomes
d. Nucleosome	$4$ . Portion of DNA or RNA composed of a purine or pyramidine base, a deoxyribose (in DNA) or a ribose (in RNA) and phosphoric acid

Q. Purine or pyrimidine bases of the two strands of DNA molecule are joined together by .......... bonds.

Q. Which purine & pyrimidine bases are paired together by H bonds in DNA?

Q. Type of gene mutation which involves replacement of purine with pyrimidine or vice versa or the substitution of one type of base with another type of base is

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