NEET Biology: Molecular Basis of Inheritance — MCQ Test 21

Q6. Which component of an operon serves as the binding site for RNA polymerase?

Q7. What is the primary function of histone proteins in eukaryotic cells?

Q8. Which type of RNA has an anticodon region?

Q9. Which term describes the process of RNA being converted into protein?

Q10. Which of the following statements about enhancers is correct?

NEET BiologyMolecular Basis of Inheritance

Free MCQ Test 21 of 22

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Which of the following best describes a polycistronic mRNA?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Molecular Basis of Inheritance. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Following, Describes, Polycistronic, Molecule, Synthesis, and Incorrect.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which of the following best describes a polycistronic mRNA?

  • A. It codes for only one protein
  • B. It contains multiple genes that are translated separately
  • C. It is found in eukaryotic cells
  • D. It contains only exons

Q2. Which molecule serves as an adapter in protein synthesis by linking codons to amino acids?

  • A. mRNA
  • B. rRNA
  • C. tRNA
  • D. snRNA

Q3. Which of the following is incorrect about RNA processing in eukaryotes?

  • A. A 5' cap is added to mRNA.
  • B. Introns are removed during splicing.
  • C. Poly-A tail is added at the 5' end of mRNA.
  • D. RNA processing occurs in the nucleus.

Q4. Which of the following is correct about a repressible operon?

  • A. It is always active, regardless of environmental conditions.
  • B. It is normally on but can be turned off by a repressor.
  • C. It is permanently inactive.
  • D. It requires an inducer for activation.

Q5. Which of the following is true regarding post-transcriptional modifications in eukaryotes?

  • A. They occur in the cytoplasm
  • B. They include intron removal and exon splicing
  • C. They involve DNA polymerase
  • D. They do not affect gene expression

+ 5 more questions in the actual test

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