Class 12 · Molecular Basis of Inheritance

Gene Expression: Promoter, tRNA, Exons — NEET Biology

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Explain (in one or two lines) the function of the following: (a) Promoter (b) tRNA (c) Exons

NCERT Biology · Class 12 · Chapter 5 · Paragraph 172
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Match the following molecular components/regions (Column I) with their corresponding descriptions or functions (Column II). Column I (Component/Region) A. Promoter B. Terminator C. Anticodon loop of tRNA D. Initiator tRNA E. Untranslated regions (UTRs) F. Histone octamer Column II (Description/Function) I. Sequence defining the end of transcription II. Region of tRNA that forms complementary base pairs with mRNA codon III. Positively charged protein complex around which DNA is wrapped IV. DNA sequence that provides a binding site for RNA polymerase V. Sequences in mRNA important for efficient translation process VI. Specific tRNA that recognises the AUG start codon

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