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प्रश्न
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उत्तर
Two nitrogenous bases present in DNA are:
(a) Purines - Adenine and Guanine.
(b) Pyrimidines - Cytosine and Thymine.
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संबंधित प्रश्न
Write a sentence of the following:
Chromonemata
Fill in the blank:
DNA stands are made up of, pentose sugar and four types of ______ bases.
State whether the following sentence is true or false:
Each spiral of the DNA has 12 nucleotides.
Write the functional activity of the following structure:
DNA
What happened when heat-killed S-cells along with living R-cells were injected into mice?
What is the biological significance of DNA?
Match the Column I with Column II and select the correct option.
| List-I | List-II | ||
| i. | Ribozyme | a. | Lac operon |
| ii. | Friedrich Miescher | b. | DNS as genetic material |
| iii. | Alfred Hershey and Martha Chase | c. | Catalytic RNA molecule |
| iv. | Francois-Jacob | d. | DNA is acidic substance |
Which of the following basic proteins DNA is associated?
Through which of the following experiments DNA was proved to be the genetic material in E. coli and bacteriophage?
