AIIMS 2019 Botany RNA Processing Assertion Reason Question

The assertion is true because in eukaryotes, both introns and exons are transcribed into heterogeneous nuclear RNA (hnRNA), which undergoes splicing to remove introns and join exons. However, the reason is false since splicing occurs in eukaryotes, not prokaryotes, where genes typically lack introns and are transcribed directly into mRNA without the need for splicing. Option A is incorrect because the reason does not explain the assertion, while option B is incorrect because the reason is false. Option D is incorrect as the assertion is true.