NEETZoologyMolecular Basis of Inheritance
Select the incorrect statement for the given figure.
Options
- AThere are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organe
- BThe second complexity is that the primary transcripts contain both the exons and the introns and are non-funct
- CIt is subjected to a process called splicing where the introns are removed and exons are joined in a defined o
- DhnRNA undergoes additional processing called capping and tailing.
Correct answer
A. There are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organe
Step-by-step solution
In eukaryotes, there are two additional complexities – (i) There are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organelles). There is a clear cut division of labour. The RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S), whereas the RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs). The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA). (ii) The second complexity is that t