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प्रश्न
उत्तर
Importance of DNA:
(a) DNA is most important because it is the hereditary material.
(b) It acts as the director of protein synthesis.
(c) Some DNA of chromosomes forms nucleolus.
(d) DNA in presence of enzymes forms mRNA which acts as messenger.
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संबंधित प्रश्न
State whether the following sentence is true or false:
In any specimen of DNA, the total molar amount of A + G = T+ C.
Choose the correct answer:
This structure is not present in all chromosomes ___________
Complete the following sentence with appropriate word:
A chromosome is composed of 50 % DNA and 50% ________.
How many codons are needed to specify three amino acids?
The ______ units form the backbone of the DNA.
Name the bond which binds the nucleotides in a DNA.
____________ were used by Friedrich Miescher for his experiments.
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 |
