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प्रश्न
Retroviruses do not follow central Dogma. Comment.
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उत्तर
Genetic material of retrovirus is RNA. At the time of synthesis of protein, RNA is ‘reverse transcribed’ to its complementary DNA first, which is opposite to the central dogma. Hence, retrovirus are not known to follow central dogma.
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संबंधित प्रश्न
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 ______.
H-bonds between Cytosine and Guanine are ______.
______ occurs in RNA instead of the nitrogenous base thymine found in DNA.
Which of the following is a structural subunit of DNA?
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 structural difference exists between the pentose sugar found in DNA and the pentose sugar found in RNA?
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?
Why is the name 'deoxyribonucleic acid' appropriate for DNA?
A dinucleotide is formed by linking two nucleotides together. The bond formed between them is:
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?
Which end of a polynucleotide chain contains a free phosphate group?
What is the significance of the 2′-OH group in ribose compared to deoxyribose?
Why is the name 'deoxyribonucleic acid' appropriate for DNA?
