Which of the Following Statements About RRNA Is Correct

question 6

Multiple Choice

Which of the following statements about rRNA is correct?

• A) rRNA is known to take part in protein synthesis through specific interactions with tRNA.
• B) The cytosol of mammalian cells contains many kinds of 80S ribosomes differing from each other in composition of their RNA.
• C) The bulk of the rRNA is coded for by DNA of nucleoli, an area in which genes or cistrons for rRNA are repeated many times.
• D) rRNA is a small percentage of the total RNA of a cell engaged in protein synthesis.
• E) The major kinds of rRNA of the cytoplasmic ribosomes are all coded for by different unique areas of DNA occurring on different chromosomes.

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