NEET Biology: Principles of Inheritance and Variation — MCQ Test 14

Q6. Which genetic principle states that allele frequencies remain constant in a population under ideal conditions?

Q7. Which of the following is an example of sex-linked inheritance?

Q8. Which of the following disorders is incorrectly matched with its cause?

Q9. Which of the following correctly describes pleiotropy?

Q10. Which of the following correctly describes codominance?

NEET BiologyPrinciples of Inheritance and Variation

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Which of the following correctly describes multiple allelism?

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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 Principles of Inheritance and Variation. 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, Correctly, Describes, Multiple, Allelism, and Epistasis.

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 correctly describes multiple allelism?

  • A. Each individual inherits more than two alleles for a gene.
  • B. A gene has more than two alleles in a population.
  • C. A single allele controls multiple traits.
  • D. Multiple genes influence a single trait.

Q2. Which of the following is an example of epistasis?

  • A. Blood group inheritance
  • B. Albinism suppressing skin color genes
  • C. Incomplete dominance in flower color
  • D. Co-dominance in sickle-cell anemia

Q3. What is the primary reason why Mendel chose the pea plant (Pisum sativum) for his experiments?

  • A. It grows only in warm climates
  • B. It has a short life cycle and distinct traits
  • C. It has large-sized flowers
  • D. It produces a single type of seed

Q4. What is the primary role of the XIST gene in female mammals?

  • A. Determines male characteristics
  • B. Initiates X chromosome inactivation
  • C. Controls blood clotting
  • D. Regulates eye color

Q5. Which of the following correctly describes a recessive allele?

  • A. It is always expressed in the phenotype.
  • B. It is expressed only in the heterozygous condition.
  • C. It is expressed only in the homozygous recessive condition.
  • D. It is dominant over other alleles.

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