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प्रश्न
The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix ______.
विकल्प
uniform width throughout DNA
uniform length in all DNA
the semiconservative nature
the antiparallel nature
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उत्तर
The fact that a purine base always paired through hydrogen bonds with a pyrimidine base leads to, in the DNA double helix uniform width throughout DNA.
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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.
If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?
A nucleoside differs from a nucleotide. It lacks the ______.
Both deoxyribose and ribose belong to a class of sugars called ______.
What is the nature of the strands of the DNA duplex?
If 30 percent of an organism’s DNA is thymine, then ______.
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 ______.
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 ______.
Which of the following is a purine?
A short piece of DNA, having 20 base pairs, was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown in the table.
| Number of nucleotide bases | ||||
| Adenine | Cytosine | Guanine | Thymine | |
| Strand 1 | 4 | 4 | ||
| Strand 2 | 5 | |||
How many nucleotides containing Adenine were present in strand 2?
What is the smallest part of a DNA molecule that can be changed by a point mutation?
