1
Question
Exons and introns are found in
Exons and introns are found in
Open in App
Solution
The correct option is C hn mRNA
- Exon is the nucleotide sequence that carries information for the synthesis of a protein, while the interrupting sequences that do not code for any protein but are present between exons are called introns.
- Prokaryotes have a single, circular, double-stranded DNA which is present in the nucleoid (the central part of cell).
- Since they have small DNA, non-coding regions are not present in their DNA. The same goes for mitochondrial DNA.
- Eukaryotes have large linear DNA which is present as compactly packed chromatin. The eukaryotic DNA has both coding and non-coding regions; therefore, the newly transcribed RNA transcript, known as hnRNA, carries both exons and introns.
- Processing of hnRNA into mRNA removes the introns and therefore, the mature mRNA carries only exons.
The correct option is C.
- Exon is the nucleotide sequence that carries information for the synthesis of a protein, while the interrupting sequences that do not code for any protein but are present between exons are called introns.
- Prokaryotes have a single, circular, double-stranded DNA which is present in the nucleoid (the central part of cell).
- Since they have small DNA, non-coding regions are not present in their DNA. The same goes for mitochondrial DNA.
- Eukaryotes have large linear DNA which is present as compactly packed chromatin. The eukaryotic DNA has both coding and non-coding regions; therefore, the newly transcribed RNA transcript, known as hnRNA, carries both exons and introns.
- Processing of hnRNA into mRNA removes the introns and therefore, the mature mRNA carries only exons.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
