Practice Chromosomal Disorders - 4.8.3 | 4. Principles of Inheritance and Variation | CBSE 12 Biology
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Chromosomal Disorders

4.8.3 - Chromosomal Disorders

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define aneuploidy.

💡 Hint: Think about how many chromosomes a person should normally have.

Question 2 Easy

What is Down’s syndrome caused by?

💡 Hint: Recall the specific chromosome number related to this condition.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary cause of Down’s syndrome?

A. Missing chromosome
B. Extra chromosome 21
C. Extra chromosome 18

💡 Hint: Think about the specific chromosome involved.

Question 2

Turner’s syndrome results from an excess of which chromosome?

True
False

💡 Hint: Consider what happens to X chromosomes in Turner’s syndrome.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Analyze a family line where one member has Down’s syndrome. Discuss the genetic implications for future generations.

💡 Hint: Consider the likelihood of passing on the affected chromosome.

Challenge 2 Hard

Compare and contrast the symptoms and genetic backgrounds of Turner’s and Klinefelter’s syndromes.

💡 Hint: Focus on what each syndrome represents regarding chromosome numbers.

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