NEET Biology: Principles of Inheritance and Variation — MCQ Test 15

Q6. Which type of mutation involves a change in a single nucleotide without shifting the reading frame?

Q7. Which type of mutation occurs due to the deletion or insertion of a single nucleotide in a gene sequence?

Q8. Which of the following disorders is inherited as an autosomal recessive trait?

Q9. What is the chromosomal composition of a normal human male?

Q10. Which of the following statements about independent assortment is incorrect?

NEET BiologyPrinciples of Inheritance and Variation

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

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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 Describes, Organism, Identical, Chromosomal, Abnormality, and Syndrome.

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

  • A. Heterozygous
  • B. Homozygous
  • C. Diploid
  • D. Hybrid

Q2. Which chromosomal abnormality causes Edward’s syndrome?

  • A. Monosomy of X chromosome
  • B. Trisomy of chromosome 18
  • C. Trisomy of chromosome 21
  • D. Deletion of chromosome 5

Q3. Which phenomenon explains why linked genes do not follow Mendel’s law of independent assortment?

  • A. Mutation
  • B. Linkage
  • C. Pleiotropy
  • D. Epistasis

Q4. Which of the following disorders is caused by a defect in clotting factors?

  • A. Sickle-cell anemia
  • B. Hemophilia
  • C. Thalassemia
  • D. Phenylketonuria

Q5. Which of the following disorders is caused by a mutation in the gene coding for the enzyme phenylalanine hydroxylase?

  • A. Sickle-cell anemia
  • B. Thalassemia
  • C. Phenylketonuria
  • D. Cystic fibrosis

+ 5 more questions in the actual test

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