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Class 12 Biology Practice Test: Molecular Basis of Inheritance - Transcription Unit and the Gene
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Avg score: 60% • Most missed: “Which of the following is the key difference between exons and introns?”
Class 12 Biology Practice Test: Molecular Basis of Inheritance - Transcription Unit and the Gene
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6 Questions

1. The genes in eukaryotic organisms are split.
2. Which of the following is the key difference between exons and introns?
S. NoExonsIntrons
IThey are non-coding sequencesThey are the coding sequences
IIThey are interrupted by IntronsThey appear in mature RNA
IIIThey appear in mature RNAThey interrupt the sequences of the exons
IVThey are the unexpressed sequencesThey appear in non-coding sequences
3. Which of the following is polycistronic?
4. It is difficult to define a gene in terms of its DNA sequence.
5. What is a cistron?
6. Which of the following is monocistronic?

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