Which antibiotic inhibits interaction between t-RNA and m-RNA during bacterial protein synthesis ?
- Erythromycin
- Neomycin
- Streptomycin
- Tetracycline
The Correct Option is D
Solution and Explanation
Tetracycline disrupts the binding of tRNA molecules carrying amino acids to the mRNA-ribosome complex, thereby preventing the incorporation of amino acids into the developing polypeptide chain. Streptomycin, on the other hand, disrupts the initial stages of protein synthesis by altering the conformation of the 30S subunit within the 70S prokaryotic ribosome. Erythromycin, meanwhile, interacts with the 50S subunit of the 70S prokaryotic ribosome.
so, the correct option is (D): Tetracycline
Top Questions on Molecular Basis of Inheritance
Student to attempt either option-(A) or (B):
(A) Write the features a molecule should have to act as a genetic material. In the light of the above features, evaluate and justify the suitability of the molecule that is preferred as an ideal genetic material.
OR
(B) Differentiate between the following:- [(i)] Polygenic Inheritance and Pleiotropy
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Name the covalent bonds depicted as (a) and (b) in the form of slanting lines in the diagram.
How many purines are present in the given “stick” diagram?
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- Distance between two consecutive base pairs of DNA is \rule{2cm}{0.1mm}
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Concepts Used:
Antibiotics
Antibiotics are a class of drugs used to treat bacterial infections. They work by targeting and killing or inhibiting the growth of bacteria, thus helping the body's immune system to fight off the infection.
Antibiotics can be classified based on their mechanism of action. Some antibiotics, such as penicillin and cephalosporins, interfere with bacterial cell wall synthesis, leading to cell death. Others, such as tetracyclines and macrolides, inhibit bacterial protein synthesis, preventing the bacteria from growing and multiplying. Some antibiotics, such as sulfonamides and trimethoprim, target bacterial metabolism, interfering with the production of essential nutrients and leading to bacterial death.
Antibiotics are commonly prescribed by doctors to treat bacterial infections such as strep throat, pneumonia, and urinary tract infections. However, antibiotics are not effective against viral infections such as the common cold or flu, and their overuse can lead to the development of antibiotic-resistant bacteria. Therefore, antibiotics should only be prescribed when necessary and used according to the prescribed dose and duration.
The discovery of antibiotics has been one of the most significant medical advancements of the 20th century, and antibiotics continue to play a vital role in modern medicine. However, the overuse and misuse of antibiotics have led to the development of antibiotic-resistant bacteria, which pose a significant threat to public health. Therefore, it is important to use antibiotics judiciously to preserve their effectiveness for future generations.