Question

Which one of the following statement is not correct?
1) Structural gene in transcription unit is monocistronic in eukaryotes and polycistronic in bacte
2) Monocistronic genes in eukaryotes are split
3) Exons are non-coding and introns are coding sequences of gene
4) Intervening sequences do not appear in mature or processed RNA

Answer 1

Answer:

Transcription is the process of formation of RNA from the DNA. In this process, only one strand of DNA is used called as template strand which has polarity 3' to 5'. The segment of DNA that takes part in transcription is called as transcription unit in which have promoter at the 5' end of coding or 3' end of template strand, structural gene and then terminator sequence. The promoter provides the binding site to the RNA polymerase enzyme for transcription. The single base DNA difference in the human genome is called as single nucleotide polymorphism.

Thus, the correct answer is option A.

Answer 2

Answer:

3 is not correct.The reverse is true

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Explanation: