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Molecular Basis of Inheritance — Study Plan

ICSE · Class 12 · Biology

A step-by-step study plan for Molecular Basis of Inheritance, ICSE Class 12 Biology: what to learn first, what to practise and when to revise.

130 questions45 flashcards4 formulas & key relations5 concepts

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A flowchart illustrating the sequential steps involved in DNA fingerprinting (DNA profiling), from DNA isolation to the detection of hybridized DNA fragments, including restriction digestion, gel elec
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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: Genes and the Nature of Genetic Material, DNA and RNA: Structure and Base Composition, DNA Double Helix and Packaging of DNA.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 130 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Molecular Basis of Inheritance after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Gene = unit of heredity and information
  • Johannsen coined the term gene in 1909
  • Cistron, muton, and recon are sub-units of a gene
  • DNA is the main genetic material
  • RNA is genetic material in some viruses
  • Griffith discovered transformation
  • Nucleotide = base + sugar + phosphate
  • Purines: adenine and guanine
  • Pyrimidines: cytosine and thymine

Common Mistakes to Avoid

DNA is always the genetic material in every organism and virus.

Griffith proved that DNA is the transforming principle.

Hershey and Chase used bacteria to prove that protein is the genetic material.

Memory Tips

Definition of gene

W. Johannsen coined the term gene in 1909

Cistron, recon, muton

Order of gene sub-units by size

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Frequently Asked Questions

What are the important topics in Molecular Basis of Inheritance for ICSE Class 12 Biology?
Key topics in Molecular Basis of Inheritance include Genes and the Nature of Genetic Material, DNA and RNA: Structure and Base Composition, DNA Double Helix and Packaging of DNA, Replication of DNA. Study these first, then practise questions on each for the ICSE Class 12 board exam.
How should I revise Molecular Basis of Inheritance for the ICSE Class 12 board exam?
Learn the core ideas first, then work through the 130 practice questions on Molecular Basis of Inheritance. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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