Which of the following cell organelles is non-membrane bound?

The larger subunit of a eukaryotic ribosome is: (in $S$)

Which organelle is found in the endoplasmic reticulum,mitochondria,and chloroplasts?

How many types of proteins are involved in the structure of a ribosome?

Which of the following does not exhibit self-duplication?

Many ribosomes may associate with a single $mRNA$ to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as