Which antibiotic inhibits the interaction between tRNA and mRNA during bacterial protein synthesis?
Correct answer: C. Neomycin
- A. Tetracycline
- B. Erythromycin
- C. Neomycin
- D. Streptomycin
Explanation
Neomycin is a broad spectrum antibiotic which was first isolated from a strain of Streptomyces feadiae. It is effective against Gram positive as well as Gram negative bacteria. Its mechanism of action is by selective inhibition of protein synthesis on the 70S (prokaryotic) ribosome by inhibiting the interaction of mRNA and tRNA during translation process. Neomycin can indeed interfere with the interaction between tRNA and mRNA during bacterial protein synthesis. It primarily does so by binding to the ribosome and causing mistranslation or misreading of the mRNA, which leads to the production of incorrect or nonfunctional proteins.
Last updated
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
1000-2000 Okazaki fragment:
200 nucleotide + 8 histones:
2n= 16 in a primary spermatocyte, which is in the metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocytes?
A 10 nucleotide sequence i.e., RNA primer is constructed by:
A cell contains 8 chromosomes in its diploid state.When this cell undergoes meiosis, its daughter cells would contain: