Practice Test Sets (Total Questions: 100)

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Topic Practice: Principles of Inheritance and Variation (Test - 2)

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About Principles of Inheritance and Variation MCQ - Test 2

Conquer Principles of Inheritance and Variation for NEET UG with genetic cross problems, pedigree analysis MCQs, Mendelian laws, and high-yield NEET biology…

This Principles of Inheritance and Variation MCQ practice set is designed for students preparing for school exams and competitive exams. It contains 100 multiple choice questions divided into 2 test sets of up to 50 questions each. Every question has four options, and after answering you can see the correct option, a detailed explanation and how other users answered.

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Sample Principles of Inheritance and Variation Questions

  1. Statement I: Down's syndrome is caused by trisomy of chromosome 21. Statement II: Affected individuals have broad flat face, furrowed tongue, open mouth, and congenital heart disease. Which choice is correct?
    • A. Both statements are true and II describes symptoms of I
    • B. Both statements are false
    • C. Statement I is true, II is false
    • D. Statement I is false, II is true
  2. Read statements regarding Klinefelter's and Turner's syndromes: 1. Klinefelter's syndrome karyotype is 47,XXY (Trisomy of sex chromosome). 2. Turner's syndrome karyotype is 45,XO (Monosomy of sex chromosome). 3. Turner's syndrome individuals are sterile females with rudimentary ovaries. Which of the above statements are CORRECT?
    • A. 1 and 2 only
    • B. 2 and 3 only
    • C. 1 and 3 only
    • D. 1, 2 and 3
  3. Consider statements regarding Test Cross: Statement I: A test cross is performed to determine the unknown genotype of a dominant phenotype plant by crossing it with a homozygous recessive parent. Statement II: If the test cross progeny exhibits 100% dominant phenotype, the unknown parent was homozygous dominant. Which option is true?
    • A. Both statements are correct
    • B. Both statements are incorrect
    • C. Statement I is correct, II is incorrect
    • D. Statement I is incorrect, II is correct
  4. Statement I: Point mutation involves a change in a single base pair of DNA. Statement II: Deletion or insertion of base pairs causes frame-shift mutation. Which choice is correct?
    • A. Both statements are correct
    • B. Both statements are incorrect
    • C. Statement I is correct, II is incorrect
    • D. Statement I is incorrect, II is correct
  5. Identify the CORRECT match of Genetic Disorder and its mode of inheritance:
    • A. Haemophilia — Autosomal Dominant
    • B. Sickle-Cell Anemia — Autosomal Recessive
    • C. Myotonic Dystrophy — X-linked Recessive
    • D. Thalassemia — Y-linked
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This page has 50 questions in Test - 2 out of 100 total questions on Principles of Inheritance and Variation.

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Yes. After you select an option, the correct answer is shown along with an explanation and the percentage of users who chose each option.

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