NEET Biology: Principles of Inheritance and Variation — MCQ Test 10

Q6. Which genetic concept explains why males are more likely to express X-linked recessive traits?

Q7. What is the expected genotypic ratio of a monohybrid cross in the F2 generation?

Q8. Which of the following is a correct statement about pleiotropy?

Q9. What is the role of crossing over during meiosis?

Q10. Which of the following statements about dominant and recessive traits is incorrect?

NEET Biology — Principles of Inheritance and Variation

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In Mendelian inheritance, what is the expected genotypic ratio of the F2 generation in a monohybrid cross?

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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 Mendelian, Inheritance, Expected, Genotypic, Generation, and Monohybrid.

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. In Mendelian inheritance, what is the expected genotypic ratio of the F2 generation in a monohybrid cross?

  • A. 3:1
  • B. 9:3:3:1
  • C. 1:2:1
  • D. 2:1

Q2. Which of the following correctly describes polygenic inheritance?

  • A. One gene controls multiple traits.
  • B. Multiple genes influence a single trait.
  • C. A single gene determines a single phenotype.
  • D. Traits are inherited only from one parent.

Q3. Which scientist discovered the concept of sex-linked inheritance through experiments on fruit flies?

  • A. Gregor Mendel
  • B. Thomas Hunt Morgan
  • C. Sutton and Boveri
  • D. Watson and Crick

Q4. What is the primary genetic cause of hemophilia?

  • A. Trisomy of chromosome 21
  • B. A mutation in the X chromosome
  • C. Deletion of chromosome 5
  • D. A mutation in the Y chromosome

Q5. Which scientist proposed the Chromosomal Theory of Inheritance?

  • A. Gregor Mendel
  • B. Thomas Hunt Morgan
  • C. Sutton and Boveri
  • D. Watson and Crick

+ 5 more questions in the actual test

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