Advertisements
Advertisements
प्रश्न
In a DNA strand the nucleotides are linked together by ______.
विकल्प
phosphodiester bonds
glycosidic bonds
peptide bonds
hydrogen bonds
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
If a double stranded DNA has 20 per cent of cytosine, calculate the per cent of adenine in the DNA.
Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.
One turn of DNA possesses ______.
If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?
In some viruses, RNA is present instead of DNA indicating that ______.
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 ______.
Synthesis of DNA from RNA is explained by ______.
If 30 percent of an organism’s DNA is thymine, then ______.
H-bonds between Cytosine and Guanine are ______.
DNA is made of two chains that twist about one another in the shape of a ______.
Which of the following is a structural subunit of DNA?
A peptide chain assumes secondary structure through the formation of ______.
In the polynucleotide chain of DNA, a nitrogenous base is linked to the -OH of ______
Which of the following is a purine?
Retroviruses do not follow central Dogma. Comment.
A nucleotide is the monomer unit of a nucleic acid. Which of the following correctly identifies the three components of a nucleotide?
Which of the following nitrogenous bases is classified as a purine with a double-ring structure?
In a polynucleotide chain, nucleotides are linked together by which type of bond?
Which end of a polynucleotide chain contains a free phosphate group?
In a DNA double helix, what is the spatial relationship between the two polynucleotide strands?
In a DNA double helix, where are the nitrogenous bases located?
What is the significance of the 2′-OH group in ribose compared to deoxyribose?
Which of the following nitrogenous bases is classified as a purine with a double-ring structure?
The phosphate group in a nucleotide is attached to which carbon of the pentose sugar?
Which end of a polynucleotide chain contains a free phosphate group?
The backbone of a polynucleotide chain is formed by which components?
Why is the name 'deoxyribonucleic acid' appropriate for DNA?
A dinucleotide is formed by linking two nucleotides together. The bond formed between them is:
