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प्रश्न
In a DNA strand the nucleotides are linked together by ______.
पर्याय
phosphodiester bonds
glycosidic bonds
peptide bonds
hydrogen bonds
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उत्तर
In a DNA strand, the nucleotides are linked together by phosphodiester bonds.
Explanation:
A phosphodiester bond is created between the 5’ phosphate group of one nucleotide and the 3’-OH group of another when nucleotides are integrated into DNA. Each strand of DNA has a phosphate-sugar-phosphate-sugar-phosphate “backbone” in this fashion.
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संबंधित प्रश्न
Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.
The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix ______.
While analysing the DNA of an organism a total number of 5386 nucleotides were found out of which the proportion of different bases were: Adenine = 29%, Guanine = 17%, Cytosine = 32%, Thymine = 17%. Considering the Chargaff’s rule it can be concluded that ______.
What is the nature of the strands of the DNA duplex?
Protein helping in opening of DNA double helix in front of replications fork is ______.
Synthesis of DNA from RNA is explained by ______.
H-bonds between Cytosine and Guanine are ______.
By which bonds the purine and pyrimidine pairs of Complementary Strands of DNA held together?
There is no DNA in ______.
______ occurs in RNA instead of the nitrogenous base thymine found in DNA.
Which of the following is a structural subunit of DNA?
In the polynucleotide chain of DNA, a nitrogenous base is linked to the -OH of ______
The 3′ end of a polynucleotide chain is characterized by the presence of:
Pyrimidines differ from purines in their basic structural feature. Which statement is correct?
What structural difference exists between the pentose sugar found in DNA and the pentose sugar found in RNA?
The phosphate group in a nucleotide is attached to which carbon of the pentose sugar?
What type of bond connects a nitrogenous base to the pentose sugar in a nucleotide?
Which end of a polynucleotide chain contains a free phosphate group?
The 3′ end of a polynucleotide chain is characterized by the presence of:
In a DNA double helix, what is the spatial relationship between the two polynucleotide strands?
What is the significance of the 2′-OH group in ribose compared to deoxyribose?
A dinucleotide is formed by linking two nucleotides together. The bond formed between them is:
