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प्रश्न
Who amongst the following scientists had no contribution in the development of the double helix model for the structure of DNA?
विकल्प
Meselson and Stahl
Erwin Chargaff
Maurice Wilkins
Rosalind Franklin
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उत्तर
Meselson and Stahl
APPEARS IN
संबंधित प्रश्न
In some viruses, RNA is present instead of DNA indicating that ______.
Both deoxyribose and ribose belong to a class of sugars called ______.
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 ______.
Protein helping in opening of DNA double helix in front of replications fork is ______.
Synthesis of DNA from RNA is explained by ______.
If 30 percent of an organism’s DNA is thymine, then ______.
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 ______
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?
What structural difference exists between the pentose sugar found in DNA and the pentose sugar found in RNA?
In a polynucleotide chain, nucleotides are linked together by which type of bond?
The backbone of a polynucleotide chain is formed by which components?
In a DNA double helix, what is the spatial relationship between the two polynucleotide strands?
What structural difference exists between the pentose sugar found in DNA and the pentose sugar found in RNA?
What type of bond connects a nitrogenous base to the pentose sugar in a nucleotide?
In a DNA double helix, what is the spatial relationship between the two polynucleotide strands?
