KROK 1 2014 – Question 146 · KROK (Medicine) · Biology
Nucleolar organizers of the 13-15, 21, 22 human chromosomes contain about 200 cluster genes that synthesize RNA. These regions of chromosomes bear the information on the following type of RNA:
- A. mRNA
- B. tRNA
- C. rRNA
- D. snRNA
- E. tRNA + rRNA
Hint
Consider what the nucleolus is built to produce, and why a cell needs hundreds of repeated gene copies on several chromosomes for this product.
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