Which of the following is not true about archaeal ribosomes? Multiple Choice

A) They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences.

B) They are 70S like bacterial ribosomes.

C) They have similar antibiotic sensitivities to those of bacteria.

D) All of these are true about archaeal ribosomes.

Question

Biology

Houston Valdez

2 June, 15:47

Which of the following is not true about archaeal ribosomes? Multiple Choice

A) They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences.

B) They are 70S like bacterial ribosomes.

C) They have similar antibiotic sensitivities to those of bacteria.

D) All of these are true about archaeal ribosomes.

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Answers (1)

Know the Answer?

Branden Ponce · Answer 1

C) They have similar antibiotic sensitivities to those of bacteria.

Explanation:

Ribosomes are the site for biological protein synthesis that is composed of macromolecular machine for protein synthesis. In archaea they ribosomes comprise of three RNA molecules - 16S, 23S, and 5S. The archaeal ribosome is a 70S ribosome that is composed of 50S and 30 S subunits. The ribosomal binding site of archaeol ribosome may be similar to that of the bacteria, i. e. the Shine - Dalgarno sequence. However, the antibiotic sensitivity of the archaeal ribosome is different than those of bacteria as the r-protein sequence of the archaea are closer to that of eukaryote than the bacteria.