Practice Packaging of DNA Helix - 5.1.2 | 5. MOLECULAR BASIS OF INHERITANCE | CBSE Grade-12 Biology
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Practice Questions

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Question 1

Easy

What structure forms when DNA wraps around histones?

💡 Hint: Think of the basic unit of DNA packaging.

Question 2

Easy

What is the major difference between euchromatin and heterochromatin?

💡 Hint: Consider accessibility for gene expression.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What structures form when DNA wraps around histones?

  • Chromosomes
  • Nucleosomes
  • Euchromatin

💡 Hint: Consider the basic structural unit of chromatin.

Question 2

True or False: Heterochromatin is transcriptionally active.

  • True
  • False

💡 Hint: Think about whether it can be easily expressed.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the length of DNA in a human cell and the average base pairs per nucleosome, estimate how many nucleosomes are required to package all human DNA.

💡 Hint: Use the total number of base pairs in human DNA for this calculation.

Question 2

If a particular gene is located in heterochromatin, what implications does this have for its expression?

💡 Hint: Consider how accessibility affects gene regulation.

Challenge and get performance evaluation