Advertisements
Advertisements
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
Advertisements
उत्तर
Meselson and Stahl
APPEARS IN
संबंधित प्रश्न
Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
One turn of DNA possesses ______.
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 ______.
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 ______.
How far is each base pair from the next one in DNA double helix model?
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 ______.
DNA is made of two chains that twist about one another in the shape of a ______.
______ occurs in RNA instead of the nitrogenous base thymine found in DNA.
Which ratio is constant for DNA?
Which of the following is a structural subunit of DNA?
A peptide chain assumes secondary structure through the formation of ______.
During in vitro synthesis of DNA, a researcher used 2’, 3’ – dideoxy cytidine triphosphate as raw nucleotide in place of 2’-deoxy cytidine. What would be the consequence?
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?
