Choose the correct answer from the alternatives given :
Which of the following statements is correct regarding ribosomes?

Most of a cells DNA molecule are stored there.

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Complete polypeptide is released from there.

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mRNAs are produced there.

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DNA replication takes place there.

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Solution

The correct option is D Complete polypeptide is released from there.
Ribosomes are, called as protein factories. Each ribosome has two unequal parts, small and large. The larger subunit of the ribosome has a groove for pushing out the newly formed polypeptide and protecting the same from cellular enzymes. The smaller subunit fits over the larger one like a cap but leaves a tunnel for mRNA. The two subunits come together only at the time of protein formation.
So, the correct answer is 'Complete polypeptide is released from there.'

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