KCET · BIOLOGY · STD 12 - 5. Molecular Basis of Inheritance
Statement A: The primary transcript produced in eukaryotes is tanslated without undergoing any modification or processing.
Statement B: The hnRNA in humans has exons and introns.
- A Statement B is correct and statement A is wrong.
- B Both the statements A and B are correct.
- C Statement A is correct and statement B is wrong.
- D Both the statements A and B are wrong.
Answer & Solution
Correct Answer
(A) Statement B is correct and statement A is wrong.
Step-by-step Solution
Detailed explanation
(A) Statement B is correct and statement A is wrong.,
Only statement b is correct. Transcription in eukaryotes occurs within the nucleus and mRNA moves out of the nucleus into the cytoplasm for translation. The primary mRNA transcript is longer and localised into the nucleus, where it is also called heterogenous nuclear RNA (hnRNA) or pre- mRNA. It has both exons and introns.
Only statement b is correct. Transcription in eukaryotes occurs within the nucleus and mRNA moves out of the nucleus into the cytoplasm for translation. The primary mRNA transcript is longer and localised into the nucleus, where it is also called heterogenous nuclear RNA (hnRNA) or pre- mRNA. It has both exons and introns.
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