KROK 1 2018 – Question 80 · KROK (Medicine) · Biology
General structure of eukaryotic genes is as follows: exon-intron-exon. Such functional structure of a gene leads to certain specifics of the transcription process. What sequence will correspond with precursor mRNA (immature)?
- A. Intron-exon
- B. Exon-intron
- C. Exon-intron-exon
- D. Exon-exon
- E. Exon-exon-intron
Hint
Recall what RNA polymerase copies from a eukaryotic gene and at which later step the non-coding stretches are removed.
The answer, the explanation and a note on every option are available once you log in. The account is free: topic tests, a mock exam, mistake review and statistics.
More questions on Biology
- A mutation has occurred in a cell in the first exon of the structural gene. The number of nucleotide pairs changed from 290 to 250. Name this type…
- A patient has an open facial wound with undermined edges; tissue necrosis with gradually developing partial gangrene that nearly reaches the bone…
- Genealogical analysis of a child with myotonic dystrophy determined that this disease is present in every generation, equally presented by the…
- A young woman, a foreign student from Tehran, has made an appointment with the urologist. She complains of the sensation of heaviness in her lower…
- Sanitary assessment of a pond, where the children from a recreation summer camp take their swims, detected there oval cysts 50-60 micron in…
- Genetic recombination is achieved via several mechanisms. One such mechanism is crossing-over. It occurs at the following stage of prophase in the…