NEET Biology: Principles of Inheritance and Variation — MCQ Test 6

Q6. Which of the following correctly describes a test cross?

Q7. Which of the following represents an example of a test cross?

Q8. Which term describes an organism with identical alleles for a given trait?

Q9. Which of the following correctly describes aneuploidy?

Q10. Which of the following statements about mutations is incorrect?

NEET Biology — Principles of Inheritance and Variation

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Which chromosomal disorder is also referred to as Trisomy 18?

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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 Chromosomal, Disorder, Referred, Scientist, Inheritance, and Condition.

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 chromosomal disorder is also referred to as Trisomy 18?

  • A. Down’s syndrome
  • B. Edward’s syndrome
  • C. Patau syndrome
  • D. Turner’s syndrome

Q2. Which scientist's work formed the basis for the chromosomal theory of inheritance?

  • A. Watson and Crick
  • B. Mendel and Morgan
  • C. Sutton and Boveri
  • D. Darwin and Wallace

Q3. Which genetic condition is caused by the deletion of a portion of chromosome 5?

  • A. Down’s syndrome
  • B. Klinefelter’s syndrome
  • C. Cri-du-chat syndrome
  • D. Turner’s syndrome

Q4. What type of sex determination system is found in honeybees?

  • A. XY system
  • B. ZW system
  • C. XO system
  • D. Haplodiploidy

Q5. Which of the following statements about polygenic inheritance is correct?

  • A. A single gene controls multiple traits.
  • B. Multiple genes influence a single trait.
  • C. It follows simple Mendelian ratios.
  • D. Polygenic traits show discontinuous variation.

+ 5 more questions in the actual test

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