which of the following is called protein synthesizing machine?
Correct answer: D. ribosomes
- A. mitochondria
- B. nucleus
- C. chromosomes
- D. ribosomes
Explanation
Ribosomes are protein-synthesizing machines because they read the codons of mRNA and join amino acids in the correct sequence to form a polypeptide. Students may choose the nucleus because it contains DNA, but the nucleus provides the genetic instructions rather than directly assembling the protein.
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